1185160977 has 160 divisors (see below), whose sum is σ = 2435457024. Its totient is φ = 554428800.

The previous prime is 1185160961. The next prime is 1185160979. The reversal of 1185160977 is 7790615811.

It is not a de Polignac number, because 1185160977 - 2⁴ = 1185160961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1185160979) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 3810652 + ... + 3810962.

Almost surely, 2^1185160977 is an apocalyptic number.

It is an amenable number.

1185160977 is an abundant number, since it is smaller than the sum of its proper divisors (1250296047).

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

1185160977 is a wasteful number, since it uses less digits than its factorization.

1185160977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The square root of 1185160977 is about 34426.1670390417. The cubic root of 1185160977 is about 1058.2601626612.

The spelling of 1185160977 in words is "one billion, one hundred eighty-five million, one hundred sixty thousand, nine hundred seventy-seven".