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135371761 = 723189119
BaseRepresentation
bin10000001000110…
…01101111110001
3100102201121010221
420010121233301
5234123344021
621233253041
73232432600
oct1004315761
9312647127
10135371761
116a460898
1239404181
1322079845
1413d9ba37
15bd40241
hex8119bf1

135371761 has 12 divisors (see below), whose sum is σ = 162554880. Its totient is φ = 112288680.

The previous prime is 135371741. The next prime is 135371773. The reversal of 135371761 is 167173531.

It is not a de Polignac number, because 135371761 - 25 = 135371729 is a prime.

It is a super-2 number, since 2×1353717612 = 36651027352482242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135371741) 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 11 ways as a sum of consecutive naturals, for example, 43041 + ... + 46078.

It is an arithmetic number, because the mean of its divisors is an integer number (13546240).

Almost surely, 2135371761 is an apocalyptic number.

It is an amenable number.

135371761 is a deficient number, since it is larger than the sum of its proper divisors (27183119).

135371761 is an equidigital number, since it uses as much as digits as its factorization.

135371761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89164 (or 89157 counting only the distinct ones).

The product of its digits is 13230, while the sum is 34.

The square root of 135371761 is about 11634.9370862072. The cubic root of 135371761 is about 513.4632430621.

The spelling of 135371761 in words is "one hundred thirty-five million, three hundred seventy-one thousand, seven hundred sixty-one".

Divisors: 1 7 31 49 217 1519 89119 623833 2762689 4366831 19338823 135371761