215134250 has 32 divisors (see below), whose sum is σ = 404172288. Its totient is φ = 85746000.

The previous prime is 215134229. The next prime is 215134273. The reversal of 215134250 is 52431512.

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, 76367 + ... + 79133.

It is an arithmetic number, because the mean of its divisors is an integer number (12630384).

Almost surely, 2^215134250 is an apocalyptic number.

215134250 is a deficient number, since it is larger than the sum of its proper divisors (189038038).

215134250 is a wasteful number, since it uses less digits than its factorization.

215134250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 215134250 is about 14667.4554712124. The cubic root of 215134250 is about 599.1973062464.

Adding to 215134250 its reverse (52431512), we get a palindrome (267565762).

The spelling of 215134250 in words is "two hundred fifteen million, one hundred thirty-four thousand, two hundred fifty".