1232215725 has 48 divisors (see below), whose sum is σ = 2198734272. Its totient is φ = 605314560.

The previous prime is 1232215703. The next prime is 1232215727. The reversal of 1232215725 is 5275122321.

It is not a de Polignac number, because 1232215725 - 2⁶ = 1232215661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1232215692 and 1232215701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232215727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 571249 + ... + 573401.

It is an arithmetic number, because the mean of its divisors is an integer number (45806964).

Almost surely, 2^1232215725 is an apocalyptic number.

1232215725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1232215725 is a deficient number, since it is larger than the sum of its proper divisors (966518547).

1232215725 is a wasteful number, since it uses less digits than its factorization.

1232215725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766 (or 2761 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 1232215725 is about 35102.9304332274. The cubic root of 1232215725 is about 1072.0842493956.

The spelling of 1232215725 in words is "one billion, two hundred thirty-two million, two hundred fifteen thousand, seven hundred twenty-five".