125305493 has 2 divisors, whose sum is σ = 125305494. Its totient is φ = 125305492.

The previous prime is 125305459. The next prime is 125305519. The reversal of 125305493 is 394503521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117137329 + 8168164 = 10823^2 + 2858^2 .

It is a cyclic number.

It is not a de Polignac number, because 125305493 - 2¹⁶ = 125239957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125305423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62652746 + 62652747.

It is an arithmetic number, because the mean of its divisors is an integer number (62652747).

Almost surely, 2^125305493 is an apocalyptic number.

It is an amenable number.

125305493 is a deficient number, since it is larger than the sum of its proper divisors (1).

125305493 is an equidigital number, since it uses as much as digits as its factorization.

125305493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 125305493 is about 11193.9936126478. The cubic root of 125305493 is about 500.4069926241.

The spelling of 125305493 in words is "one hundred twenty-five million, three hundred five thousand, four hundred ninety-three".