135878402 has 24 divisors (see below), whose sum is σ = 224716800. Its totient is φ = 61574040.

The previous prime is 135878359. The next prime is 135878423. The reversal of 135878402 is 204878531.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105599 + ... + 106877.

It is an arithmetic number, because the mean of its divisors is an integer number (9363200).

Almost surely, 2^135878402 is an apocalyptic number.

135878402 is a deficient number, since it is larger than the sum of its proper divisors (88838398).

135878402 is a wasteful number, since it uses less digits than its factorization.

135878402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 135878402 is about 11656.6891525853. The cubic root of 135878402 is about 514.1030064016.

The spelling of 135878402 in words is "one hundred thirty-five million, eight hundred seventy-eight thousand, four hundred two".