2251501131 has 32 divisors (see below), whose sum is σ = 3471206400. Its totient is φ = 1282926080.

The previous prime is 2251501127. The next prime is 2251501141. The reversal of 2251501131 is 1311051522.

It is not a de Polignac number, because 2251501131 - 2² = 2251501127 is a prime.

It is a super-2 number, since 2×2251501131² = 10138514685788558322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2251501098 and 2251501107.

It is not an unprimeable number, because it can be changed into a prime (2251501141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805885 + ... + 808673.

It is an arithmetic number, because the mean of its divisors is an integer number (108475200).

Almost surely, 2^2251501131 is an apocalyptic number.

2251501131 is a deficient number, since it is larger than the sum of its proper divisors (1219705269).

2251501131 is a wasteful number, since it uses less digits than its factorization.

2251501131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2251501131 is about 47449.9855742865. The cubic root of 2251501131 is about 1310.6620453693.

Adding to 2251501131 its reverse (1311051522), we get a palindrome (3562552653).

The spelling of 2251501131 in words is "two billion, two hundred fifty-one million, five hundred one thousand, one hundred thirty-one".