140579919 has 12 divisors (see below), whose sum is σ = 215004816. Its totient is φ = 88206912.

The previous prime is 140579911. The next prime is 140579921. The reversal of 140579919 is 919975041.

It is not a de Polignac number, because 140579919 - 2³ = 140579911 is a prime.

It is a super-2 number, since 2×140579919² = 39525427252093122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140579911) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 459259 + ... + 459564.

It is an arithmetic number, because the mean of its divisors is an integer number (17917068).

Almost surely, 2^140579919 is an apocalyptic number.

140579919 is a deficient number, since it is larger than the sum of its proper divisors (74424897).

140579919 is a wasteful number, since it uses less digits than its factorization.

140579919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918846 (or 918843 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 140579919 is about 11856.6402914148. The cubic root of 140579919 is about 519.9653810779.

The spelling of 140579919 in words is "one hundred forty million, five hundred seventy-nine thousand, nine hundred nineteen".