131250601 has 2 divisors, whose sum is σ = 131250602. Its totient is φ = 131250600.

The previous prime is 131250599. The next prime is 131250619. The reversal of 131250601 is 106052131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126585001 + 4665600 = 11251^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 131250601 - 2¹ = 131250599 is a prime.

It is a super-2 number, since 2×131250601² = 34453440525722402, which contains 22 as substring.

Together with 131250599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131250701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65625300 + 65625301.

It is an arithmetic number, because the mean of its divisors is an integer number (65625301).

Almost surely, 2^131250601 is an apocalyptic number.

It is an amenable number.

131250601 is a deficient number, since it is larger than the sum of its proper divisors (1).

131250601 is an equidigital number, since it uses as much as digits as its factorization.

131250601 is an evil number, because the sum of its binary digits is even.

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

The square root of 131250601 is about 11456.4654671500. The cubic root of 131250601 is about 508.1989540941.

The spelling of 131250601 in words is "one hundred thirty-one million, two hundred fifty thousand, six hundred one".