964722143 has 32 divisors (see below), whose sum is σ = 1280793600. Its totient is φ = 718982880.

The previous prime is 964722119. The next prime is 964722151. The reversal of 964722143 is 341227469.

It is not a de Polignac number, because 964722143 - 2¹⁴ = 964705759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 964722097 and 964722106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964722193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81221 + ... + 92337.

It is an arithmetic number, because the mean of its divisors is an integer number (40024800).

Almost surely, 2^964722143 is an apocalyptic number.

964722143 is a deficient number, since it is larger than the sum of its proper divisors (316071457).

964722143 is a wasteful number, since it uses less digits than its factorization.

964722143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172 (or 11158 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 964722143 is about 31059.9765453872. The cubic root of 964722143 is about 988.0996579608.

The spelling of 964722143 in words is "nine hundred sixty-four million, seven hundred twenty-two thousand, one hundred forty-three".