1178142312 has 32 divisors (see below), whose sum is σ = 2946196800. Its totient is φ = 392601984.

The previous prime is 1178142311. The next prime is 1178142331. The reversal of 1178142312 is 2132418711.

It is a self number, because there is not a number n which added to its sum of digits gives 1178142312.

It is not an unprimeable number, because it can be changed into a prime (1178142311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160989 + ... + 168147.

It is an arithmetic number, because the mean of its divisors is an integer number (92068650).

Almost surely, 2^1178142312 is an apocalyptic number.

1178142312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1178142312 is an abundant number, since it is smaller than the sum of its proper divisors (1768054488).

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

1178142312 is a wasteful number, since it uses less digits than its factorization.

1178142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14025 (or 14021 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 1178142312 is about 34324.0777297803. The cubic root of 1178142312 is about 1056.1669774410.

The spelling of 1178142312 in words is "one billion, one hundred seventy-eight million, one hundred forty-two thousand, three hundred twelve".