1142691456 has 32 divisors (see below), whose sum is σ = 3035275200. Its totient is φ = 380897024.

The previous prime is 1142691391. The next prime is 1142691493. The reversal of 1142691456 is 6541962411.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487496 + ... + 1488263.

It is an arithmetic number, because the mean of its divisors is an integer number (94852350).

Almost surely, 2^1142691456 is an apocalyptic number.

1142691456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1142691456 is an abundant number, since it is smaller than the sum of its proper divisors (1892583744).

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

1142691456 is an equidigital number, since it uses as much as digits as its factorization.

1142691456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975776 (or 2975764 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1142691456 is about 33803.7195586521. The cubic root of 1142691456 is about 1045.4653898024.

The spelling of 1142691456 in words is "one billion, one hundred forty-two million, six hundred ninety-one thousand, four hundred fifty-six".