639153 has 12 divisors (see below), whose sum is σ = 943488. Its totient is φ = 416760.

The previous prime is 639151. The next prime is 639157. The reversal of 639153 is 351936.

639153 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 639153 - 2¹ = 639151 is a prime.

639153 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (639151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2⁶³⁹¹⁵³ is an apocalyptic number.

It is an amenable number.

639153 is a deficient number, since it is larger than the sum of its proper divisors (304335).

639153 is a wasteful number, since it uses less digits than its factorization.

639153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1561 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 639153 is about 799.4704497353. The cubic root of 639153 is about 86.1393540225.

It can be divided in two parts, 63 and 9153, that added together give a square (9216 = 96²).

The spelling of 639153 in words is "six hundred thirty-nine thousand, one hundred fifty-three".