815012153 has 8 divisors (see below), whose sum is σ = 870226368. Its totient is φ = 761446224.

The previous prime is 815012141. The next prime is 815012171. The reversal of 815012153 is 351210518.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 815012153 - 2⁴ = 815012137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (815012123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411050 + ... + 413027.

It is an arithmetic number, because the mean of its divisors is an integer number (108778296).

Almost surely, 2^815012153 is an apocalyptic number.

It is an amenable number.

815012153 is a deficient number, since it is larger than the sum of its proper divisors (55214215).

815012153 is a wasteful number, since it uses less digits than its factorization.

815012153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824143.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 815012153 is about 28548.4176969583. The cubic root of 815012153 is about 934.0885063171.

The spelling of 815012153 in words is "eight hundred fifteen million, twelve thousand, one hundred fifty-three".