131211253 has 4 divisors (see below), whose sum is σ = 138929580. Its totient is φ = 123492928.

The previous prime is 131211229. The next prime is 131211271. The reversal of 131211253 is 352112131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 76702564 + 54508689 = 8758^2 + 7383^2 .

It is a cyclic number.

It is not a de Polignac number, because 131211253 - 2¹⁷ = 131080181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131211253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212253) 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, 3859138 + ... + 3859171.

It is an arithmetic number, because the mean of its divisors is an integer number (34732395).

Almost surely, 2^131211253 is an apocalyptic number.

It is an amenable number.

131211253 is a deficient number, since it is larger than the sum of its proper divisors (7718327).

131211253 is an equidigital number, since it uses as much as digits as its factorization.

131211253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718326.

The product of its digits is 180, while the sum is 19.

The square root of 131211253 is about 11454.7480548461. The cubic root of 131211253 is about 508.1481642034.

Adding to 131211253 its reverse (352112131), we get a palindrome (483323384).

The spelling of 131211253 in words is "one hundred thirty-one million, two hundred eleven thousand, two hundred fifty-three".