135968432 has 20 divisors (see below), whose sum is σ = 264063456. Its totient is φ = 67823040.

The previous prime is 135968429. The next prime is 135968519. The reversal of 135968432 is 234869531.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 135968432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2963 + ... + 16754.

Almost surely, 2^135968432 is an apocalyptic number.

It is an amenable number.

135968432 is a deficient number, since it is larger than the sum of its proper divisors (128095024).

135968432 is a wasteful number, since it uses less digits than its factorization.

135968432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20156 (or 20150 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 135968432 is about 11660.5502443067. The cubic root of 135968432 is about 514.2165257305.

The spelling of 135968432 in words is "one hundred thirty-five million, nine hundred sixty-eight thousand, four hundred thirty-two".