1204921625 has 16 divisors (see below), whose sum is σ = 1515241728. Its totient is φ = 956566000.

The previous prime is 1204921621. The next prime is 1204921691. The reversal of 1204921625 is 5261294021.

It is not a de Polignac number, because 1204921625 - 2² = 1204921621 is a prime.

It is a super-2 number, since 2×1204921625² = 2903672244785281250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1204921591 and 1204921600.

It is not an unprimeable number, because it can be changed into a prime (1204921621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20417 + ... + 53166.

It is an arithmetic number, because the mean of its divisors is an integer number (94702608).

Almost surely, 2^1204921625 is an apocalyptic number.

It is an amenable number.

1204921625 is a deficient number, since it is larger than the sum of its proper divisors (310320103).

1204921625 is an equidigital number, since it uses as much as digits as its factorization.

1204921625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73729 (or 73719 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1204921625 is about 34711.9810008014. The cubic root of 1204921625 is about 1064.1093672912.

The spelling of 1204921625 in words is "one billion, two hundred four million, nine hundred twenty-one thousand, six hundred twenty-five".