215012361274 has 4 divisors (see below), whose sum is σ = 322518541914. Its totient is φ = 107506180636.

The previous prime is 215012361229. The next prime is 215012361281. The reversal of 215012361274 is 472163210512.

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

It can be written as a sum of positive squares in only one way, i.e., 212988711049 + 2023650225 = 461507^2 + 44985^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53753090317 + ... + 53753090320.

Almost surely, 2^215012361274 is an apocalyptic number.

215012361274 is a deficient number, since it is larger than the sum of its proper divisors (107506180640).

215012361274 is a wasteful number, since it uses less digits than its factorization.

215012361274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107506180639.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 215012361274 its reverse (472163210512), we get a palindrome (687175571786).

The spelling of 215012361274 in words is "two hundred fifteen billion, twelve million, three hundred sixty-one thousand, two hundred seventy-four".