215045514 has 12 divisors (see below), whose sum is σ = 465931986. Its totient is φ = 71681832.

The previous prime is 215045513. The next prime is 215045573. The reversal of 215045514 is 415540512.

It can be written as a sum of positive squares in only one way, i.e., 208311489 + 6734025 = 14433^2 + 2595^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215045513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5973469 + ... + 5973504.

Almost surely, 2^215045514 is an apocalyptic number.

215045514 is an abundant number, since it is smaller than the sum of its proper divisors (250886472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215045514 is a wasteful number, since it uses less digits than its factorization.

215045514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11946981 (or 11946978 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 215045514 is about 14664.4302310045. The cubic root of 215045514 is about 599.1149116731.

The spelling of 215045514 in words is "two hundred fifteen million, forty-five thousand, five hundred fourteen".