633139 has 8 divisors (see below), whose sum is σ = 689472. Its totient is φ = 577920.

The previous prime is 633133. The next prime is 633151. The reversal of 633139 is 931336.

633139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 633139 - 2⁹ = 632627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (633133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2⁶³³¹³⁹ is an apocalyptic number.

633139 is a deficient number, since it is larger than the sum of its proper divisors (56333).

633139 is a wasteful number, since it uses less digits than its factorization.

633139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 1458, while the sum is 25.

The square root of 633139 is about 795.7003204725. The cubic root of 633139 is about 85.8683310533.

The spelling of 633139 in words is "six hundred thirty-three thousand, one hundred thirty-nine".