125448581 has 2 divisors, whose sum is σ = 125448582. Its totient is φ = 125448580.

The previous prime is 125448569. The next prime is 125448623. The reversal of 125448581 is 185844521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95844100 + 29604481 = 9790^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 125448581 - 2²² = 121254277 is a prime.

It is a super-2 number, since 2×125448581² = 31474692949827122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125448511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62724290 + 62724291.

It is an arithmetic number, because the mean of its divisors is an integer number (62724291).

Almost surely, 2^125448581 is an apocalyptic number.

It is an amenable number.

125448581 is a deficient number, since it is larger than the sum of its proper divisors (1).

125448581 is an equidigital number, since it uses as much as digits as its factorization.

125448581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51200, while the sum is 38.

The square root of 125448581 is about 11200.3830738060. The cubic root of 125448581 is about 500.5973939567.

The spelling of 125448581 in words is "one hundred twenty-five million, four hundred forty-eight thousand, five hundred eighty-one".