135507442 has 48 divisors (see below), whose sum is σ = 252396000. Its totient is φ = 54214272.

The previous prime is 135507371. The next prime is 135507443. The reversal of 135507442 is 244705531.

135507442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (135507443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271309 + ... + 271807.

It is an arithmetic number, because the mean of its divisors is an integer number (5258250).

Almost surely, 2^135507442 is an apocalyptic number.

135507442 is a deficient number, since it is larger than the sum of its proper divisors (116888558).

135507442 is a wasteful number, since it uses less digits than its factorization.

135507442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 135507442 is about 11640.7663837052. The cubic root of 135507442 is about 513.6347311757.

The spelling of 135507442 in words is "one hundred thirty-five million, five hundred seven thousand, four hundred forty-two".