135674661 has 16 divisors (see below), whose sum is σ = 184455360. Its totient is φ = 88686720.

The previous prime is 135674657. The next prime is 135674711. The reversal of 135674661 is 166476531.

It is not a de Polignac number, because 135674661 - 2² = 135674657 is a prime.

It is a super-2 number, since 2×135674661² = 36815227274929842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135674621) 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, 37471 + ... + 40931.

It is an arithmetic number, because the mean of its divisors is an integer number (11528460).

Almost surely, 2^135674661 is an apocalyptic number.

It is an amenable number.

135674661 is a deficient number, since it is larger than the sum of its proper divisors (48780699).

135674661 is a wasteful number, since it uses less digits than its factorization.

135674661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716.

The product of its digits is 90720, while the sum is 39.

The square root of 135674661 is about 11647.9466430783. The cubic root of 135674661 is about 513.8459229726.

The spelling of 135674661 in words is "one hundred thirty-five million, six hundred seventy-four thousand, six hundred sixty-one".