632139 has 4 divisors (see below), whose sum is σ = 842856. Its totient is φ = 421424.

The previous prime is 632123. The next prime is 632141. The reversal of 632139 is 931236.

632139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 632139 - 2⁴ = 632123 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 632139.

It is not an unprimeable number, because it can be changed into a prime (632189) 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, 105354 + ... + 105359.

It is an arithmetic number, because the mean of its divisors is an integer number (210714).

2⁶³²¹³⁹ is an apocalyptic number.

632139 is a deficient number, since it is larger than the sum of its proper divisors (210717).

632139 is a wasteful number, since it uses less digits than its factorization.

632139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210716.

The product of its digits is 972, while the sum is 24.

The square root of 632139 is about 795.0716948804. The cubic root of 632139 is about 85.8230995015.

The spelling of 632139 in words is "six hundred thirty-two thousand, one hundred thirty-nine".