125803973 has 2 divisors, whose sum is σ = 125803974. Its totient is φ = 125803972.

The previous prime is 125803933. The next prime is 125803987. The reversal of 125803973 is 379308521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107288164 + 18515809 = 10358^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 125803973 - 2¹⁰ = 125802949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125803933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62901986 + 62901987.

It is an arithmetic number, because the mean of its divisors is an integer number (62901987).

Almost surely, 2^125803973 is an apocalyptic number.

It is an amenable number.

125803973 is a deficient number, since it is larger than the sum of its proper divisors (1).

125803973 is an equidigital number, since it uses as much as digits as its factorization.

125803973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 125803973 is about 11216.2370249563. The cubic root of 125803973 is about 501.0696739633.

The spelling of 125803973 in words is "one hundred twenty-five million, eight hundred three thousand, nine hundred seventy-three".