215142710 has 16 divisors (see below), whose sum is σ = 387425376. Its totient is φ = 86019648.

The previous prime is 215142689. The next prime is 215142721. The reversal of 215142710 is 17241512.

215142710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215142710² = 92572771332288200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37919 + ... + 43221.

It is an arithmetic number, because the mean of its divisors is an integer number (24214086).

Almost surely, 2^215142710 is an apocalyptic number.

215142710 is a deficient number, since it is larger than the sum of its proper divisors (172282666).

215142710 is a wasteful number, since it uses less digits than its factorization.

215142710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 215142710 is about 14667.7438619578. The cubic root of 215142710 is about 599.2051604781.

The spelling of 215142710 in words is "two hundred fifteen million, one hundred forty-two thousand, seven hundred ten".