2015213210 has 16 divisors (see below), whose sum is σ = 3630651336. Its totient is φ = 805359168.

The previous prime is 2015213171. The next prime is 2015213227. The reversal of 2015213210 is 123125102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 467813641 + 1547399569 = 21629^2 + 39337^2 .

It is a super-2 number, since 2×2015213210² = 8122168563517008200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 79037 + ... + 101376.

Almost surely, 2^2015213210 is an apocalyptic number.

2015213210 is a deficient number, since it is larger than the sum of its proper divisors (1615438126).

2015213210 is a wasteful number, since it uses less digits than its factorization.

2015213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181537.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2015213210 is about 44891.1261832447. The cubic root of 2015213210 is about 1263.1075579170.

Adding to 2015213210 its reverse (123125102), we get a palindrome (2138338312).

The spelling of 2015213210 in words is "two billion, fifteen million, two hundred thirteen thousand, two hundred ten".