215713015 has 16 divisors (see below), whose sum is σ = 297331200. Its totient is φ = 147169440.

The previous prime is 215713009. The next prime is 215713039. The reversal of 215713015 is 510317512.

It is not a de Polignac number, because 215713015 - 2¹⁵ = 215680247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8521 + ... + 22450.

It is an arithmetic number, because the mean of its divisors is an integer number (18583200).

Almost surely, 2^215713015 is an apocalyptic number.

215713015 is a deficient number, since it is larger than the sum of its proper divisors (81618185).

215713015 is a wasteful number, since it uses less digits than its factorization.

215713015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31182.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 215713015 is about 14687.1717835668. The cubic root of 215713015 is about 599.7341553766.

The spelling of 215713015 in words is "two hundred fifteen million, seven hundred thirteen thousand, fifteen".