135087912 has 40 divisors (see below), whose sum is σ = 378373050. Its totient is φ = 45029088.

The previous prime is 135087893. The next prime is 135087919. The reversal of 135087912 is 219780531.

It can be written as a sum of positive squares in only one way, i.e., 78747876 + 56340036 = 8874^2 + 7506^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (135087919) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 103587 + ... + 104882.

Almost surely, 2^135087912 is an apocalyptic number.

135087912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135087912 is an abundant number, since it is smaller than the sum of its proper divisors (243285138).

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

135087912 is a wasteful number, since it uses less digits than its factorization.

135087912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208487 (or 208474 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 135087912 is about 11622.7325530617. The cubic root of 135087912 is about 513.1041134742.

The spelling of 135087912 in words is "one hundred thirty-five million, eighty-seven thousand, nine hundred twelve".