1151978524 has 12 divisors (see below), whose sum is σ = 2020642848. Its totient is φ = 574652000.

The previous prime is 1151978489. The next prime is 1151978567. The reversal of 1151978524 is 4258791511.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 332377 + ... + 335824.

It is an arithmetic number, because the mean of its divisors is an integer number (168386904).

Almost surely, 2^1151978524 is an apocalyptic number.

It is an amenable number.

1151978524 is a deficient number, since it is larger than the sum of its proper divisors (868664324).

1151978524 is a wasteful number, since it uses less digits than its factorization.

1151978524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668636 (or 668634 counting only the distinct ones).

The product of its digits is 100800, while the sum is 43.

The square root of 1151978524 is about 33940.8091241208. The cubic root of 1151978524 is about 1048.2900434021.

The spelling of 1151978524 in words is "one billion, one hundred fifty-one million, nine hundred seventy-eight thousand, five hundred twenty-four".