515142216 has 48 divisors (see below), whose sum is σ = 1418835600. Its totient is φ = 168802272.

The previous prime is 515142209. The next prime is 515142217. The reversal of 515142216 is 612241515.

515142216 is a `hidden beast` number, since 515 + 142 + 2 + 1 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 515142216.

It is not an unprimeable number, because it can be changed into a prime (515142217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56386 + ... + 64881.

It is an arithmetic number, because the mean of its divisors is an integer number (29559075).

Almost surely, 2^515142216 is an apocalyptic number.

It is an amenable number.

515142216 is an abundant number, since it is smaller than the sum of its proper divisors (903693384).

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

515142216 is a wasteful number, since it uses less digits than its factorization.

515142216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121338 (or 121331 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 515142216 is about 22696.7446123888. The cubic root of 515142216 is about 801.6332342467.

The spelling of 515142216 in words is "five hundred fifteen million, one hundred forty-two thousand, two hundred sixteen".