815195045 has 16 divisors (see below), whose sum is σ = 1128840960. Its totient is φ = 553561344.

The previous prime is 815195027. The next prime is 815195047. The reversal of 815195045 is 540591518.

815195045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 815195045 - 2¹⁸ = 814932901 is a prime.

It is a super-2 number, since 2×815195045² = 1329085922785104050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) 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 (815195047) 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, 109460 + ... + 116669.

It is an arithmetic number, because the mean of its divisors is an integer number (70552560).

Almost surely, 2^815195045 is an apocalyptic number.

It is an amenable number.

815195045 is a deficient number, since it is larger than the sum of its proper divisors (313645915).

815195045 is a wasteful number, since it uses less digits than its factorization.

815195045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226244.

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 815195045 is about 28551.6207070632. The cubic root of 815195045 is about 934.1583721619.

The spelling of 815195045 in words is "eight hundred fifteen million, one hundred ninety-five thousand, forty-five".