125665453 has 2 divisors, whose sum is σ = 125665454. Its totient is φ = 125665452.

The previous prime is 125665447. The next prime is 125665493. The reversal of 125665453 is 354566521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79602084 + 46063369 = 8922^2 + 6787^2 .

It is an emirp because it is prime and its reverse (354566521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125665453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125665433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62832726 + 62832727.

It is an arithmetic number, because the mean of its divisors is an integer number (62832727).

Almost surely, 2^125665453 is an apocalyptic number.

It is an amenable number.

125665453 is a deficient number, since it is larger than the sum of its proper divisors (1).

125665453 is an equidigital number, since it uses as much as digits as its factorization.

125665453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

The square root of 125665453 is about 11210.0603477412. The cubic root of 125665453 is about 500.8857008084.

The spelling of 125665453 in words is "one hundred twenty-five million, six hundred sixty-five thousand, four hundred fifty-three".