131226253 has 2 divisors, whose sum is σ = 131226254. Its totient is φ = 131226252.

The previous prime is 131226233. The next prime is 131226283. The reversal of 131226253 is 352622131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88021924 + 43204329 = 9382^2 + 6573^2 .

It is a cyclic number.

It is not a de Polignac number, because 131226253 - 2²¹ = 129129101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131226233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65613126 + 65613127.

It is an arithmetic number, because the mean of its divisors is an integer number (65613127).

Almost surely, 2^131226253 is an apocalyptic number.

It is an amenable number.

131226253 is a deficient number, since it is larger than the sum of its proper divisors (1).

131226253 is an equidigital number, since it uses as much as digits as its factorization.

131226253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 131226253 is about 11455.4027864584. The cubic root of 131226253 is about 508.1675272073.

Adding to 131226253 its reverse (352622131), we get a palindrome (483848384).

The spelling of 131226253 in words is "one hundred thirty-one million, two hundred twenty-six thousand, two hundred fifty-three".