1172983725 has 36 divisors (see below), whose sum is σ = 2116335156. Its totient is φ = 621008640.

The previous prime is 1172983717. The next prime is 1172983727. The reversal of 1172983725 is 5273892711.

It can be written as a sum of positive squares in 6 ways, for example, as 22553001 + 1150430724 = 4749^2 + 33918^2 .

It is not a de Polignac number, because 1172983725 - 2³ = 1172983717 is a prime.

It is a super-2 number, since 2×1172983725² = 2751781638229751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172983727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11799 + ... + 49851.

Almost surely, 2^1172983725 is an apocalyptic number.

1172983725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1172983725 is a deficient number, since it is larger than the sum of its proper divisors (943351431).

1172983725 is a wasteful number, since it uses less digits than its factorization.

1172983725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38206 (or 38198 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1172983725 is about 34248.8499806928. The cubic root of 1172983725 is about 1054.6232192263.

The spelling of 1172983725 in words is "one billion, one hundred seventy-two million, nine hundred eighty-three thousand, seven hundred twenty-five".