1139680231 has 8 divisors (see below), whose sum is σ = 1148688144. Its totient is φ = 1130700480.

The previous prime is 1139680229. The next prime is 1139680237. The reversal of 1139680231 is 1320869311.

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

It is a cyclic number.

It is not a de Polignac number, because 1139680231 - 2¹ = 1139680229 is a prime.

It is a super-2 number, since 2×1139680231² = 2597742057864426722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139680237) 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, 78235 + ... + 91651.

It is an arithmetic number, because the mean of its divisors is an integer number (143586018).

Almost surely, 2^1139680231 is an apocalyptic number.

1139680231 is a deficient number, since it is larger than the sum of its proper divisors (9007913).

1139680231 is a wasteful number, since it uses less digits than its factorization.

1139680231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1139680231 is about 33759.1503299476. The cubic root of 1139680231 is about 1044.5462437867.

The spelling of 1139680231 in words is "one billion, one hundred thirty-nine million, six hundred eighty thousand, two hundred thirty-one".