1152122425 has 6 divisors (see below), whose sum is σ = 1428631838. Its totient is φ = 921697920.

The previous prime is 1152122407. The next prime is 1152122429. The reversal of 1152122425 is 5242212511.

It can be written as a sum of positive squares in 3 ways, for example, as 189447696 + 962674729 = 13764^2 + 31027^2 .

It is not a de Polignac number, because 1152122425 - 2⁷ = 1152122297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 46084897 = 1152122425 / (1 + 1 + 5 + 2 + 1 + 2 + 2 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1152122425.

It is not an unprimeable number, because it can be changed into a prime (1152122429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23042424 + ... + 23042473.

Almost surely, 2^1152122425 is an apocalyptic number.

It is an amenable number.

1152122425 is a deficient number, since it is larger than the sum of its proper divisors (276509413).

1152122425 is an equidigital number, since it uses as much as digits as its factorization.

1152122425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46084907 (or 46084902 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 1152122425 is about 33942.9289396186. The cubic root of 1152122425 is about 1048.3336911211. Note that the first 3 decimals are identical.

Adding to 1152122425 its reverse (5242212511), we get a palindrome (6394334936).

The spelling of 1152122425 in words is "one billion, one hundred fifty-two million, one hundred twenty-two thousand, four hundred twenty-five".