26223131 has 4 divisors (see below), whose sum is σ = 28607064. Its totient is φ = 23839200.

The previous prime is 26223101. The next prime is 26223139. The reversal of 26223131 is 13132262.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-26223131 is a prime.

It is a super-2 number, since 2×26223131² = 1375305198886322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26223139) 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, 1191950 + ... + 1191971.

It is an arithmetic number, because the mean of its divisors is an integer number (7151766).

Almost surely, 2^26223131 is an apocalyptic number.

26223131 is a deficient number, since it is larger than the sum of its proper divisors (2383933).

26223131 is a wasteful number, since it uses less digits than its factorization.

26223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383932.

The product of its digits is 432, while the sum is 20.

The square root of 26223131 is about 5120.8525657355. The cubic root of 26223131 is about 297.0946615994.

Adding to 26223131 its reverse (13132262), we get a palindrome (39355393).

It can be divided in two parts, 262231 and 31, that added together give a palindrome (262262).

The spelling of 26223131 in words is "twenty-six million, two hundred twenty-three thousand, one hundred thirty-one".