125891453 has 2 divisors, whose sum is σ = 125891454. Its totient is φ = 125891452.

The previous prime is 125891431. The next prime is 125891461. The reversal of 125891453 is 354198521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65254084 + 60637369 = 8078^2 + 7787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125891453 is a prime.

It is a Chen prime.

It is equal to p_7157963 and since 125891453 and 7157963 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125891413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62945726 + 62945727.

It is an arithmetic number, because the mean of its divisors is an integer number (62945727).

Almost surely, 2^125891453 is an apocalyptic number.

It is an amenable number.

125891453 is a deficient number, since it is larger than the sum of its proper divisors (1).

125891453 is an equidigital number, since it uses as much as digits as its factorization.

125891453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 125891453 is about 11220.1360508685. The cubic root of 125891453 is about 501.1857895830.

The spelling of 125891453 in words is "one hundred twenty-five million, eight hundred ninety-one thousand, four hundred fifty-three".