1156423825 has 24 divisors (see below), whose sum is σ = 1449907200. Its totient is φ = 914918400.

The previous prime is 1156423823. The next prime is 1156423843. The reversal of 1156423825 is 5283246511.

It is not a de Polignac number, because 1156423825 - 2¹ = 1156423823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156423823) 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 23 ways as a sum of consecutive naturals, for example, 949617 + ... + 950833.

It is an arithmetic number, because the mean of its divisors is an integer number (60412800).

Almost surely, 2^1156423825 is an apocalyptic number.

It is an amenable number.

1156423825 is a deficient number, since it is larger than the sum of its proper divisors (293483375).

1156423825 is a wasteful number, since it uses less digits than its factorization.

1156423825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1612 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 1156423825 is about 34006.2321494164. The cubic root of 1156423825 is about 1049.6367072731.

The spelling of 1156423825 in words is "one billion, one hundred fifty-six million, four hundred twenty-three thousand, eight hundred twenty-five".