815241902 has 32 divisors (see below), whose sum is σ = 1338267744. Its totient is φ = 370944000.

The previous prime is 815241901. The next prime is 815241929. The reversal of 815241902 is 209142518.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815241901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144902 + ... + 150422.

It is an arithmetic number, because the mean of its divisors is an integer number (41820867).

Almost surely, 2^815241902 is an apocalyptic number.

815241902 is a deficient number, since it is larger than the sum of its proper divisors (523025842).

815241902 is a wasteful number, since it uses less digits than its factorization.

815241902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 815241902 is about 28552.4412616505. The cubic root of 815241902 is about 934.1762701363.

The spelling of 815241902 in words is "eight hundred fifteen million, two hundred forty-one thousand, nine hundred two".