135640696 has 48 divisors (see below), whose sum is σ = 272811240. Its totient is φ = 63201600.

The previous prime is 135640693. The next prime is 135640697. The reversal of 135640696 is 696046531.

It is a super-2 number, since 2×135640696² = 36796796822728832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135640693) 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, 193146 + ... + 193846.

Almost surely, 2^135640696 is an apocalyptic number.

It is an amenable number.

135640696 is an abundant number, since it is smaller than the sum of its proper divisors (137170544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135640696 is a wasteful number, since it uses less digits than its factorization.

135640696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 135640696 is about 11646.4885695217. The cubic root of 135640696 is about 513.8030404052.

The spelling of 135640696 in words is "one hundred thirty-five million, six hundred forty thousand, six hundred ninety-six".