239140631 has 8 divisors (see below), whose sum is σ = 253651200. Its totient is φ = 224822520.

The previous prime is 239140609. The next prime is 239140661. The reversal of 239140631 is 136041932.

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-239140631 is a prime.

It is a super-2 number, since 2×239140631² = 114376482790156322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239140594 and 239140603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239140661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45551 + ... + 50528.

It is an arithmetic number, because the mean of its divisors is an integer number (31706400).

Almost surely, 2^239140631 is an apocalyptic number.

239140631 is a deficient number, since it is larger than the sum of its proper divisors (14510569).

239140631 is a wasteful number, since it uses less digits than its factorization.

239140631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96229.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 239140631 is about 15464.1724964513. The cubic root of 239140631 is about 620.7038754177.

The spelling of 239140631 in words is "two hundred thirty-nine million, one hundred forty thousand, six hundred thirty-one".