964138615 has 8 divisors (see below), whose sum is σ = 1262145168. Its totient is φ = 701191680.

The previous prime is 964138601. The next prime is 964138649. The reversal of 964138615 is 516831469.

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

It is not a de Polignac number, because 964138615 - 2¹¹ = 964136567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8764842 + ... + 8764951.

It is an arithmetic number, because the mean of its divisors is an integer number (157768146).

Almost surely, 2^964138615 is an apocalyptic number.

964138615 is a deficient number, since it is larger than the sum of its proper divisors (298006553).

964138615 is a wasteful number, since it uses less digits than its factorization.

964138615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529809.

The product of its digits is 155520, while the sum is 43.

The square root of 964138615 is about 31050.5815565506. The cubic root of 964138615 is about 987.9003950219.

The spelling of 964138615 in words is "nine hundred sixty-four million, one hundred thirty-eight thousand, six hundred fifteen".