240215157 has 96 divisors (see below), whose sum is σ = 461260800. Its totient is φ = 116919936.

The previous prime is 240215153. The next prime is 240215159. The reversal of 240215157 is 751512042.

240215157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240215157 - 2² = 240215153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240215157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240215153) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 668944 + ... + 669302.

It is an arithmetic number, because the mean of its divisors is an integer number (4804800).

Almost surely, 2^240215157 is an apocalyptic number.

It is an amenable number.

240215157 is a deficient number, since it is larger than the sum of its proper divisors (221045643).

240215157 is a wasteful number, since it uses less digits than its factorization.

240215157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 240215157 is about 15498.8759915034. The cubic root of 240215157 is about 621.6321520640.

Adding to 240215157 its reverse (751512042), we get a palindrome (991727199).

The spelling of 240215157 in words is "two hundred forty million, two hundred fifteen thousand, one hundred fifty-seven".