1230726825 has 48 divisors (see below), whose sum is σ = 2264785600. Its totient is φ = 655257600.

The previous prime is 1230726821. The next prime is 1230726829. The reversal of 1230726825 is 5286270321.

It is an interprime number because it is at equal distance from previous prime (1230726821) and next prime (1230726829).

It is not a de Polignac number, because 1230726825 - 2² = 1230726821 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230726825.

It is not an unprimeable number, because it can be changed into a prime (1230726821) 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, 517890 + ... + 520260.

Almost surely, 2^1230726825 is an apocalyptic number.

1230726825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1230726825 is a deficient number, since it is larger than the sum of its proper divisors (1034058775).

1230726825 is a wasteful number, since it uses less digits than its factorization.

1230726825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159 (or 3148 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1230726825 is about 35081.7163918757. The cubic root of 1230726825 is about 1071.6522715768.

The spelling of 1230726825 in words is "one billion, two hundred thirty million, seven hundred twenty-six thousand, eight hundred twenty-five".