215397150 has 48 divisors (see below), whose sum is σ = 535666608. Its totient is φ = 57280000.

The previous prime is 215397131. The next prime is 215397151. The reversal of 215397150 is 51793512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215397151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58360 + ... + 61940.

It is an arithmetic number, because the mean of its divisors is an integer number (11159721).

Almost surely, 2^215397150 is an apocalyptic number.

215397150 is an abundant number, since it is smaller than the sum of its proper divisors (320269458).

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

215397150 is a wasteful number, since it uses less digits than its factorization.

215397150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 215397150 is about 14676.4147529293. The cubic root of 215397150 is about 599.4412854471.

The spelling of 215397150 in words is "two hundred fifteen million, three hundred ninety-seven thousand, one hundred fifty".