142307456 has 32 divisors (see below), whose sum is σ = 284625900. Its totient is φ = 70872064.

The previous prime is 142307447. The next prime is 142307471. The reversal of 142307456 is 654703241.

It can be written as a sum of positive squares in 2 ways, for example, as 139617856 + 2689600 = 11816^2 + 1640^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32366 + ... + 36498.

Almost surely, 2^142307456 is an apocalyptic number.

142307456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142307456 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

142307456 is an equidigital number, since it uses as much as digits as its factorization.

142307456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4404 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 142307456 is about 11929.2688795248. The cubic root of 142307456 is about 522.0866060067.

The spelling of 142307456 in words is "one hundred forty-two million, three hundred seven thousand, four hundred fifty-six".