968139 has 16 divisors (see below), whose sum is σ = 1497600. Its totient is φ = 616968.

The previous prime is 968137. The next prime is 968141. The reversal of 968139 is 931869.

It is an interprime number because it is at equal distance from previous prime (968137) and next prime (968141).

It is not a de Polignac number, because 968139 - 2¹ = 968137 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 968139.

It is not an unprimeable number, because it can be changed into a prime (968137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (93600).

2⁹⁶⁸¹³⁹ is an apocalyptic number.

968139 is a deficient number, since it is larger than the sum of its proper divisors (529461).

968139 is a wasteful number, since it uses less digits than its factorization.

968139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1585 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 968139 is about 983.9405469844. The cubic root of 968139 is about 98.9264835292.

The spelling of 968139 in words is "nine hundred sixty-eight thousand, one hundred thirty-nine".