140794581 has 8 divisors (see below), whose sum is σ = 187817344. Its totient is φ = 93817440.

The previous prime is 140794573. The next prime is 140794597. The reversal of 140794581 is 185497041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140794581 - 2³ = 140794573 is a prime.

It is a super-2 number, since 2×140794581² = 39646228077931122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140794531) 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, 3400 + ... + 17121.

It is an arithmetic number, because the mean of its divisors is an integer number (23477168).

Almost surely, 2^140794581 is an apocalyptic number.

It is an amenable number.

140794581 is a deficient number, since it is larger than the sum of its proper divisors (47022763).

140794581 is a wasteful number, since it uses less digits than its factorization.

140794581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22811.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 140794581 is about 11865.6892340900. The cubic root of 140794581 is about 520.2299045024.

The spelling of 140794581 in words is "one hundred forty million, seven hundred ninety-four thousand, five hundred eighty-one".