135474657 has 8 divisors (see below), whose sum is σ = 180726240. Its totient is φ = 90269760.

The previous prime is 135474653. The next prime is 135474667. The reversal of 135474657 is 756474531.

It is a happy number.

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

It is not a de Polignac number, because 135474657 - 2² = 135474653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135474653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4219 + ... + 16992.

It is an arithmetic number, because the mean of its divisors is an integer number (22590780).

Almost surely, 2^135474657 is an apocalyptic number.

It is an amenable number.

135474657 is a deficient number, since it is larger than the sum of its proper divisors (45251583).

135474657 is a wasteful number, since it uses less digits than its factorization.

135474657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23343.

The product of its digits is 352800, while the sum is 42.

The square root of 135474657 is about 11639.3581008576. The cubic root of 135474657 is about 513.5933044893.

The spelling of 135474657 in words is "one hundred thirty-five million, four hundred seventy-four thousand, six hundred fifty-seven".