135908964 has 81 divisors (see below), whose sum is σ = 361192377. Its totient is φ = 43087968.

The previous prime is 135908951. The next prime is 135908977. The reversal of 135908964 is 469809531.

It is a happy number.

The square root of 135908964 is 11658.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (135908951) and next prime (135908977).

It can be written as a sum of positive squares in only one way, i.e., 71267364 + 64641600 = 8442^2 + 8040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2028459 + ... + 2028525.

Almost surely, 2^135908964 is an apocalyptic number.

135908964 is the 11658-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135908964

135908964 is an abundant number, since it is smaller than the sum of its proper divisors (225283413).

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

135908964 is a wasteful number, since it uses less digits than its factorization.

135908964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The cubic root of 135908964 is about 514.1415478180.

The spelling of 135908964 in words is "one hundred thirty-five million, nine hundred eight thousand, nine hundred sixty-four".