125489453 has 2 divisors, whose sum is σ = 125489454. Its totient is φ = 125489452.

The previous prime is 125489431. The next prime is 125489473. The reversal of 125489453 is 354984521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125395204 + 94249 = 11198^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 125489453 - 2²⁶ = 58380589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125489453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125489473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62744726 + 62744727.

It is an arithmetic number, because the mean of its divisors is an integer number (62744727).

Almost surely, 2^125489453 is an apocalyptic number.

It is an amenable number.

125489453 is a deficient number, since it is larger than the sum of its proper divisors (1).

125489453 is an equidigital number, since it uses as much as digits as its factorization.

125489453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 41.

The square root of 125489453 is about 11202.2075056660. The cubic root of 125489453 is about 500.6517540641.

The spelling of 125489453 in words is "one hundred twenty-five million, four hundred eighty-nine thousand, four hundred fifty-three".