131153441 has 2 divisors, whose sum is σ = 131153442. Its totient is φ = 131153440.

The previous prime is 131153437. The next prime is 131153443. The reversal of 131153441 is 144351131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130873600 + 279841 = 11440^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 131153441 - 2² = 131153437 is a prime.

It is a super-2 number, since 2×131153441² = 34402450172280962, which contains 22 as substring.

Together with 131153443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131153443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65576720 + 65576721.

It is an arithmetic number, because the mean of its divisors is an integer number (65576721).

Almost surely, 2^131153441 is an apocalyptic number.

It is an amenable number.

131153441 is a deficient number, since it is larger than the sum of its proper divisors (1).

131153441 is an equidigital number, since it uses as much as digits as its factorization.

131153441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 131153441 is about 11452.2242817716. The cubic root of 131153441 is about 508.0735227973.

The spelling of 131153441 in words is "one hundred thirty-one million, one hundred fifty-three thousand, four hundred forty-one".