131625289 has 2 divisors, whose sum is σ = 131625290. Its totient is φ = 131625288.

The previous prime is 131625253. The next prime is 131625311. The reversal of 131625289 is 982526131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130873600 + 751689 = 11440^2 + 867^2 .

It is a cyclic number.

It is not a de Polignac number, because 131625289 - 2⁷ = 131625161 is a prime.

It is not a weakly prime, because it can be changed into another prime (131625209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65812644 + 65812645.

It is an arithmetic number, because the mean of its divisors is an integer number (65812645).

Almost surely, 2^131625289 is an apocalyptic number.

It is an amenable number.

131625289 is a deficient number, since it is larger than the sum of its proper divisors (1).

131625289 is an equidigital number, since it uses as much as digits as its factorization.

131625289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 131625289 is about 11472.8065005909. The cubic root of 131625289 is about 508.6820887444.

The spelling of 131625289 in words is "one hundred thirty-one million, six hundred twenty-five thousand, two hundred eighty-nine".