140294579 has 6 divisors (see below), whose sum is σ = 143801580. Its totient is φ = 136871120.

The previous prime is 140294573. The next prime is 140294587. The reversal of 140294579 is 975492041.

It is not a de Polignac number, because 140294579 - 2⁴ = 140294563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140294573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40049 + ... + 43410.

It is an arithmetic number, because the mean of its divisors is an integer number (23966930).

Almost surely, 2^140294579 is an apocalyptic number.

140294579 is a deficient number, since it is larger than the sum of its proper divisors (3507001).

140294579 is an frugal number, since it uses more digits than its factorization.

140294579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83541 (or 83500 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 140294579 is about 11844.6012596457. The cubic root of 140294579 is about 519.6133454575.

The spelling of 140294579 in words is "one hundred forty million, two hundred ninety-four thousand, five hundred seventy-nine".