140624239 has 8 divisors (see below), whose sum is σ = 161547680. Its totient is φ = 119909376.

The previous prime is 140624227. The next prime is 140624243. The reversal of 140624239 is 932426041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140624239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140624239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140624269) 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, 50694 + ... + 53395.

It is an arithmetic number, because the mean of its divisors is an integer number (20193460).

Almost surely, 2^140624239 is an apocalyptic number.

140624239 is a deficient number, since it is larger than the sum of its proper divisors (20923441).

140624239 is a wasteful number, since it uses less digits than its factorization.

140624239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104289.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 140624239 is about 11858.5091390107. The cubic root of 140624239 is about 520.0200177205.

The spelling of 140624239 in words is "one hundred forty million, six hundred twenty-four thousand, two hundred thirty-nine".