140285456 has 10 divisors (see below), whose sum is σ = 271803102. Its totient is φ = 70142720.

The previous prime is 140285443. The next prime is 140285567. The reversal of 140285456 is 654582041.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 99856 = 11840^2 + 316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4383905 + ... + 4383936.

Almost surely, 2^140285456 is an apocalyptic number.

140285456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140285456 is a deficient number, since it is larger than the sum of its proper divisors (131517646).

140285456 is an equidigital number, since it uses as much as digits as its factorization.

140285456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8767849 (or 8767843 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 140285456 is about 11844.2161412227. The cubic root of 140285456 is about 519.6020821681.

The spelling of 140285456 in words is "one hundred forty million, two hundred eighty-five thousand, four hundred fifty-six".