2251413231 has 16 divisors (see below), whose sum is σ = 3107259360. Its totient is φ = 1448316800.

The previous prime is 2251413209. The next prime is 2251413251. The reversal of 2251413231 is 1323141522.

It is a cyclic number.

It is not a de Polignac number, because 2251413231 - 2⁹ = 2251412719 is a prime.

It is a super-2 number, since 2×2251413231² = 10137723073443718722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251413251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158581 + ... + 172193.

It is an arithmetic number, because the mean of its divisors is an integer number (194203710).

Almost surely, 2^2251413231 is an apocalyptic number.

2251413231 is a deficient number, since it is larger than the sum of its proper divisors (855846129).

2251413231 is a wasteful number, since it uses less digits than its factorization.

2251413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546.

The product of its digits is 1440, while the sum is 24.

The square root of 2251413231 is about 47449.0593268191. The cubic root of 2251413231 is about 1310.6449887944.

Adding to 2251413231 its reverse (1323141522), we get a palindrome (3574554753).

The spelling of 2251413231 in words is "two billion, two hundred fifty-one million, four hundred thirteen thousand, two hundred thirty-one".