135087968 has 12 divisors (see below), whose sum is σ = 265954500. Its totient is φ = 67543968.

The previous prime is 135087961. The next prime is 135087973. The reversal of 135087968 is 869780531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135087961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110718 + ... + 2110781.

It is an arithmetic number, because the mean of its divisors is an integer number (22162875).

Almost surely, 2^135087968 is an apocalyptic number.

It is an amenable number.

135087968 is a deficient number, since it is larger than the sum of its proper divisors (130866532).

135087968 is an equidigital number, since it uses as much as digits as its factorization.

135087968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221509 (or 4221501 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 135087968 is about 11622.7349621335. The cubic root of 135087968 is about 513.1041843758.

The spelling of 135087968 in words is "one hundred thirty-five million, eighty-seven thousand, nine hundred sixty-eight".