22631051 has 4 divisors (see below), whose sum is σ = 22917600. Its totient is φ = 22344504.

The previous prime is 22631047. The next prime is 22631069. The reversal of 22631051 is 15013622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22631051 - 2² = 22631047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22631041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143156 + ... + 143313.

It is an arithmetic number, because the mean of its divisors is an integer number (5729400).

Almost surely, 2^22631051 is an apocalyptic number.

22631051 is a deficient number, since it is larger than the sum of its proper divisors (286549).

22631051 is an equidigital number, since it uses as much as digits as its factorization.

22631051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286548.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22631051 is about 4757.2104220856. The cubic root of 22631051 is about 282.8578533392.

Adding to 22631051 its reverse (15013622), we get a palindrome (37644673).

The spelling of 22631051 in words is "twenty-two million, six hundred thirty-one thousand, fifty-one".