215472023 has 4 divisors (see below), whose sum is σ = 232046808. Its totient is φ = 198897240.

The previous prime is 215472013. The next prime is 215472091. The reversal of 215472023 is 320274512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215472023 - 2¹² = 215467927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215471983 and 215472001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215472013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8287373 + ... + 8287398.

It is an arithmetic number, because the mean of its divisors is an integer number (58011702).

Almost surely, 2^215472023 is an apocalyptic number.

215472023 is a deficient number, since it is larger than the sum of its proper divisors (16574785).

215472023 is a wasteful number, since it uses less digits than its factorization.

215472023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16574784.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 215472023 is about 14678.9653245724. The cubic root of 215472023 is about 599.5107335464.

The spelling of 215472023 in words is "two hundred fifteen million, four hundred seventy-two thousand, twenty-three".