215266130 has 32 divisors (see below), whose sum is σ = 404449200. Its totient is φ = 82388992.

The previous prime is 215266099. The next prime is 215266151. The reversal of 215266130 is 31662512.

215266130 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 75151561 + 140114569 = 8669^2 + 11837^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 215266130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29486 + ... + 36054.

Almost surely, 2^215266130 is an apocalyptic number.

215266130 is a deficient number, since it is larger than the sum of its proper divisors (189183070).

215266130 is a wasteful number, since it uses less digits than its factorization.

215266130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 215266130 is about 14671.9504497528. The cubic root of 215266130 is about 599.3197197302.

The spelling of 215266130 in words is "two hundred fifteen million, two hundred sixty-six thousand, one hundred thirty".