1172520424 has 8 divisors (see below), whose sum is σ = 2198475810. Its totient is φ = 586260208.

The previous prime is 1172520407. The next prime is 1172520469. The reversal of 1172520424 is 4240252711.

It can be written as a sum of positive squares in only one way, i.e., 1170324100 + 2196324 = 34210^2 + 1482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1172520392 and 1172520401.

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 as a sum of consecutive naturals, namely, 73282519 + ... + 73282534.

Almost surely, 2^1172520424 is an apocalyptic number.

It is an amenable number.

1172520424 is a deficient number, since it is larger than the sum of its proper divisors (1025955386).

1172520424 is a wasteful number, since it uses less digits than its factorization.

1172520424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146565059 (or 146565055 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 1172520424 is about 34242.0855673249. The cubic root of 1172520424 is about 1054.4843504807.

The spelling of 1172520424 in words is "one billion, one hundred seventy-two million, five hundred twenty thousand, four hundred twenty-four".