1923972125 has 16 divisors (see below), whose sum is σ = 2411638320. Its totient is φ = 1532433600.

The previous prime is 1923972107. The next prime is 1923972151. The reversal of 1923972125 is 5212793291.

It can be written as a sum of positive squares in 8 ways, for example, as 189915961 + 1734056164 = 13781^2 + 41642^2 .

It is not a de Polignac number, because 1923972125 - 2¹² = 1923968029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4982 + ... + 62231.

It is an arithmetic number, because the mean of its divisors is an integer number (150727395).

Almost surely, 2^1923972125 is an apocalyptic number.

It is an amenable number.

1923972125 is a deficient number, since it is larger than the sum of its proper divisors (487666195).

1923972125 is an equidigital number, since it uses as much as digits as its factorization.

1923972125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67457 (or 67447 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 1923972125 is about 43863.1066501223. The cubic root of 1923972125 is about 1243.7495172679.

The spelling of 1923972125 in words is "one billion, nine hundred twenty-three million, nine hundred seventy-two thousand, one hundred twenty-five".