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137055145 = 529393553
BaseRepresentation
bin10000010101101…
…00101110101001
3100112220010022111
420022310232221
5240041231040
621333322321
73252643453
oct1012645651
9315803274
10137055145
1170400617
1239a963a1
1322518b26
14142b92d3
15c073dea
hex82b4ba9

137055145 has 8 divisors (see below), whose sum is σ = 165029256. Its totient is φ = 109268736.

The previous prime is 137055143. The next prime is 137055157. The reversal of 137055145 is 541550731.

It can be written as a sum of positive squares in 4 ways, for example, as 49744809 + 87310336 = 7053^2 + 9344^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137055145 - 21 = 137055143 is a prime.

It is a super-2 number, since 2×1370551452 = 37568225541942050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137055143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45312 + ... + 48241.

It is an arithmetic number, because the mean of its divisors is an integer number (20628657).

Almost surely, 2137055145 is an apocalyptic number.

It is an amenable number.

137055145 is a deficient number, since it is larger than the sum of its proper divisors (27974111).

137055145 is an equidigital number, since it uses as much as digits as its factorization.

137055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93851.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 137055145 is about 11707.0553513683. The cubic root of 137055145 is about 515.5828321561.

The spelling of 137055145 in words is "one hundred thirty-seven million, fifty-five thousand, one hundred forty-five".

Divisors: 1 5 293 1465 93553 467765 27411029 137055145