131472557 has 2 divisors, whose sum is σ = 131472558. Its totient is φ = 131472556.

The previous prime is 131472553. The next prime is 131472589. The reversal of 131472557 is 755274131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100681156 + 30791401 = 10034^2 + 5549^2 .

It is an emirp because it is prime and its reverse (755274131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131472557 - 2² = 131472553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131472553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65736278 + 65736279.

It is an arithmetic number, because the mean of its divisors is an integer number (65736279).

Almost surely, 2^131472557 is an apocalyptic number.

It is an amenable number.

131472557 is a deficient number, since it is larger than the sum of its proper divisors (1).

131472557 is an equidigital number, since it uses as much as digits as its factorization.

131472557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 35.

The square root of 131472557 is about 11466.1483070820. The cubic root of 131472557 is about 508.4852620736.

The spelling of 131472557 in words is "one hundred thirty-one million, four hundred seventy-two thousand, five hundred fifty-seven".