131622473 has 2 divisors, whose sum is σ = 131622474. Its totient is φ = 131622472.

The previous prime is 131622467. The next prime is 131622499. The reversal of 131622473 is 374226131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 48958009 = 9092^2 + 6997^2 .

It is an emirp because it is prime and its reverse (374226131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131622473 - 2⁴ = 131622457 is a prime.

It is not a weakly prime, because it can be changed into another prime (131621473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65811236 + 65811237.

It is an arithmetic number, because the mean of its divisors is an integer number (65811237).

Almost surely, 2^131622473 is an apocalyptic number.

It is an amenable number.

131622473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131622473 is an equidigital number, since it uses as much as digits as its factorization.

131622473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 131622473 is about 11472.6837749500. The cubic root of 131622473 is about 508.6784611259.

The spelling of 131622473 in words is "one hundred thirty-one million, six hundred twenty-two thousand, four hundred seventy-three".