1162147980 has 48 divisors (see below), whose sum is σ = 3718874880. Its totient is φ = 265633728.

The previous prime is 1162147963. The next prime is 1162147981. The reversal of 1162147980 is 897412611.

It is not an unprimeable number, because it can be changed into a prime (1162147981) 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 15 ways as a sum of consecutive naturals, for example, 1383090 + ... + 1383929.

It is an arithmetic number, because the mean of its divisors is an integer number (77476560).

Almost surely, 2^1162147980 is an apocalyptic number.

1162147980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162147980 is an abundant number, since it is smaller than the sum of its proper divisors (2556726900).

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

1162147980 is a wasteful number, since it uses less digits than its factorization.

1162147980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767038 (or 2767036 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1162147980 is about 34090.2915798619. The cubic root of 1162147980 is about 1051.3657149340.

The spelling of 1162147980 in words is "one billion, one hundred sixty-two million, one hundred forty-seven thousand, nine hundred eighty".