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145088369 is a prime number
BaseRepresentation
bin10001010010111…
…01111101110001
3101010000020211022
420221131331301
5244120311434
622221425225
73411142106
oct1051357561
9333006738
10145088369
1174998048
124070b215
132409c40a
14153aaaad
15cb0e22e
hex8a5df71

145088369 has 2 divisors, whose sum is σ = 145088370. Its totient is φ = 145088368.

The previous prime is 145088327. The next prime is 145088413. The reversal of 145088369 is 963880541.

It is an a-pointer prime, because the next prime (145088413) can be obtained adding 145088369 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101263969 + 43824400 = 10063^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 145088369 - 28 = 145088113 is a prime.

It is a super-2 number, since 2×1450883692 = 42101269638160322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (145088309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72544184 + 72544185.

It is an arithmetic number, because the mean of its divisors is an integer number (72544185).

Almost surely, 2145088369 is an apocalyptic number.

It is an amenable number.

145088369 is a deficient number, since it is larger than the sum of its proper divisors (1).

145088369 is an equidigital number, since it uses as much as digits as its factorization.

145088369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 145088369 is about 12045.2633429079. The cubic root of 145088369 is about 525.4654907037.

The spelling of 145088369 in words is "one hundred forty-five million, eighty-eight thousand, three hundred sixty-nine".