125501973 has 16 divisors (see below), whose sum is σ = 186505920. Its totient is φ = 74601216.

The previous prime is 125501969. The next prime is 125502023. The reversal of 125501973 is 379105521.

It is not a de Polignac number, because 125501973 - 2² = 125501969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125501923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63790 + ... + 65727.

It is an arithmetic number, because the mean of its divisors is an integer number (11656620).

Almost surely, 2^125501973 is an apocalyptic number.

It is an amenable number.

125501973 is a deficient number, since it is larger than the sum of its proper divisors (61003947).

125501973 is a wasteful number, since it uses less digits than its factorization.

125501973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129556.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 125501973 is about 11202.7663101575. The cubic root of 125501973 is about 500.6684034089.

The spelling of 125501973 in words is "one hundred twenty-five million, five hundred one thousand, nine hundred seventy-three".