140693456 has 40 divisors (see below), whose sum is σ = 277247880. Its totient is φ = 69156864.

The previous prime is 140693453. The next prime is 140693459. The reversal of 140693456 is 654396041.

It is an interprime number because it is at equal distance from previous prime (140693453) and next prime (140693459).

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 140659600 = 184^2 + 11860^2 .

It is a super-2 number, since 2×140693456² = 39589297122447872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140693453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417320 + ... + 417656.

It is an arithmetic number, because the mean of its divisors is an integer number (6931197).

Almost surely, 2^140693456 is an apocalyptic number.

140693456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140693456 is a deficient number, since it is larger than the sum of its proper divisors (136554424).

140693456 is a wasteful number, since it uses less digits than its factorization.

140693456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 140693456 is about 11861.4272328418. The cubic root of 140693456 is about 520.1053238333.

The spelling of 140693456 in words is "one hundred forty million, six hundred ninety-three thousand, four hundred fifty-six".