642932119 has 4 divisors (see below), whose sum is σ = 642985744. Its totient is φ = 642878496.

The previous prime is 642932107. The next prime is 642932123. The reversal of 642932119 is 911239246.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-642932119 is a prime.

It is a super-2 number, since 2×642932119² = 826723419283660322, 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 (642932419) 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, 334 + ... + 35860.

It is an arithmetic number, because the mean of its divisors is an integer number (160746436).

Almost surely, 2^642932119 is an apocalyptic number.

642932119 is a deficient number, since it is larger than the sum of its proper divisors (53625).

642932119 is a wasteful number, since it uses less digits than its factorization.

642932119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53624.

The product of its digits is 23328, while the sum is 37.

The square root of 642932119 is about 25356.1061482239. The cubic root of 642932119 is about 863.0879252422.

The spelling of 642932119 in words is "six hundred forty-two million, nine hundred thirty-two thousand, one hundred nineteen".