1172253900 has 72 divisors (see below), whose sum is σ = 3396004864. Its totient is φ = 312206400.

The previous prime is 1172253883. The next prime is 1172253911. The reversal of 1172253900 is 93522711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295329 + ... + 299271.

Almost surely, 2^1172253900 is an apocalyptic number.

1172253900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172253900 is an abundant number, since it is smaller than the sum of its proper divisors (2223750964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1172253900 is a wasteful number, since it uses less digits than its factorization.

1172253900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951 (or 4944 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1172253900 is about 34238.1935855267. The cubic root of 1172253900 is about 1054.4044466318.

The spelling of 1172253900 in words is "one billion, one hundred seventy-two million, two hundred fifty-three thousand, nine hundred".