2151337256 has 32 divisors (see below), whose sum is σ = 4168454400. Its totient is φ = 1039825920.

The previous prime is 2151337241. The next prime is 2151337259. The reversal of 2151337256 is 6527331512.

It is not an unprimeable number, because it can be changed into a prime (2151337259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248456 + ... + 256968.

It is an arithmetic number, because the mean of its divisors is an integer number (130264200).

Almost surely, 2^2151337256 is an apocalyptic number.

It is an amenable number.

2151337256 is a deficient number, since it is larger than the sum of its proper divisors (2017117144).

2151337256 is a wasteful number, since it uses less digits than its factorization.

2151337256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569 (or 9565 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 2151337256 is about 46382.5102382353. The cubic root of 2151337256 is about 1290.9304138477.

Adding to 2151337256 its reverse (6527331512), we get a palindrome (8678668768).

The spelling of 2151337256 in words is "two billion, one hundred fifty-one million, three hundred thirty-seven thousand, two hundred fifty-six".