135672057 has 16 divisors (see below), whose sum is σ = 203071680. Its totient is φ = 89513856.

The previous prime is 135672011. The next prime is 135672071. The reversal of 135672057 is 750276531.

It is not a de Polignac number, because 135672057 - 2⁷ = 135671929 is a prime.

It is a super-2 number, since 2×135672057² = 36813814101222498, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (135672077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23283 + ... + 28520.

It is an arithmetic number, because the mean of its divisors is an integer number (12691980).

Almost surely, 2^135672057 is an apocalyptic number.

It is an amenable number.

135672057 is a deficient number, since it is larger than the sum of its proper divisors (67399623).

135672057 is an equidigital number, since it uses as much as digits as its factorization.

135672057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51909 (or 51903 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 135672057 is about 11647.8348631838. The cubic root of 135672057 is about 513.8426355414.

The spelling of 135672057 in words is "one hundred thirty-five million, six hundred seventy-two thousand, fifty-seven".