964139 has 4 divisors (see below), whose sum is σ = 1051800. Its totient is φ = 876480.

The previous prime is 964133. The next prime is 964151. The reversal of 964139 is 931469.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-964139 is a prime.

It is a super-2 number, since 2×964139² = 1859128022642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43814 + ... + 43835.

It is an arithmetic number, because the mean of its divisors is an integer number (262950).

2⁹⁶⁴¹³⁹ is an apocalyptic number.

964139 is a deficient number, since it is larger than the sum of its proper divisors (87661).

964139 is a wasteful number, since it uses less digits than its factorization.

964139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87660.

The product of its digits is 5832, while the sum is 32.

The square root of 964139 is about 981.9057999625. The cubic root of 964139 is about 98.7900526518.

The spelling of 964139 in words is "nine hundred sixty-four thousand, one hundred thirty-nine".