931424139 has 6 divisors (see below), whose sum is σ = 1345390436. Its totient is φ = 620949420.

The previous prime is 931424129. The next prime is 931424177.

931424139 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 931424139 - 2⁵ = 931424107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (931424119) 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, 51745777 + ... + 51745794.

Almost surely, 2^931424139 is an apocalyptic number.

931424139 is a deficient number, since it is larger than the sum of its proper divisors (413966297).

931424139 is a wasteful number, since it uses less digits than its factorization.

931424139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103491577 (or 103491574 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 931424139 is about 30519.2421105112. The cubic root of 931424139 is about 976.5979980350.

The spelling of 931424139 in words is "nine hundred thirty-one million, four hundred twenty-four thousand, one hundred thirty-nine".