1162142457 has 48 divisors (see below), whose sum is σ = 1914138432. Its totient is φ = 623185920.

The previous prime is 1162142453. The next prime is 1162142473. The reversal of 1162142457 is 7542412611.

It is not a de Polignac number, because 1162142457 - 2² = 1162142453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1162142453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1681482 + ... + 1682172.

It is an arithmetic number, because the mean of its divisors is an integer number (39877884).

Almost surely, 2^1162142457 is an apocalyptic number.

1162142457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1162142457 is a deficient number, since it is larger than the sum of its proper divisors (751995975).

1162142457 is a wasteful number, since it uses less digits than its factorization.

1162142457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1391 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 1162142457 is about 34090.2105742983. The cubic root of 1162142457 is about 1051.3640494255.

The spelling of 1162142457 in words is "one billion, one hundred sixty-two million, one hundred forty-two thousand, four hundred fifty-seven".