215031052 has 12 divisors (see below), whose sum is σ = 379821960. Its totient is φ = 106510496.

The previous prime is 215031029. The next prime is 215031053. The reversal of 215031052 is 250130512.

It is not an unprimeable number, because it can be changed into a prime (215031053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250777 + ... + 251632.

It is an arithmetic number, because the mean of its divisors is an integer number (31651830).

Almost surely, 2^215031052 is an apocalyptic number.

It is an amenable number.

215031052 is a deficient number, since it is larger than the sum of its proper divisors (164790908).

215031052 is a wasteful number, since it uses less digits than its factorization.

215031052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502520 (or 502518 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 215031052 is about 14663.9371247970. The cubic root of 215031052 is about 599.1014810371.

Adding to 215031052 its reverse (250130512), we get a palindrome (465161564).

The spelling of 215031052 in words is "two hundred fifteen million, thirty-one thousand, fifty-two".