123925001 has 6 divisors (see below), whose sum is σ = 127023006. Its totient is φ = 120900800.

The previous prime is 123924991. The next prime is 123925007. The reversal of 123925001 is 100529321.

It can be written as a sum of positive squares in 3 ways, for example, as 11055625 + 112869376 = 3325^2 + 10624^2 .

It is not a de Polignac number, because 123925001 - 2²² = 119730697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123925007) 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 5 ways as a sum of consecutive naturals, for example, 35180 + ... + 38541.

It is an arithmetic number, because the mean of its divisors is an integer number (21170501).

Almost surely, 2^123925001 is an apocalyptic number.

It is an amenable number.

123925001 is a deficient number, since it is larger than the sum of its proper divisors (3098005).

123925001 is an frugal number, since it uses more digits than its factorization.

123925001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73803 (or 73762 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 123925001 is about 11132.1606617943. The cubic root of 123925001 is about 498.5625393742.

The spelling of 123925001 in words is "one hundred twenty-three million, nine hundred twenty-five thousand, one".