918135072 has 36 divisors (see below), whose sum is σ = 2610947430. Its totient is φ = 306044928.

The previous prime is 918135067. The next prime is 918135109. The reversal of 918135072 is 270531819.

It can be written as a sum of positive squares in only one way, i.e., 862244496 + 55890576 = 29364^2 + 7476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1593697 + ... + 1594272.

Almost surely, 2^918135072 is an apocalyptic number.

It is an amenable number.

918135072 is an abundant number, since it is smaller than the sum of its proper divisors (1692812358).

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

918135072 is a wasteful number, since it uses less digits than its factorization.

918135072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187985 (or 3187974 counting only the distinct ones).

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

The square root of 918135072 is about 30300.7437532480. The cubic root of 918135072 is about 971.9312048043.

It can be divided in two parts, 9181 and 35072, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 918135072 in words is "nine hundred eighteen million, one hundred thirty-five thousand, seventy-two".