634153 has 4 divisors (see below), whose sum is σ = 682948. Its totient is φ = 585360.

The previous prime is 634141. The next prime is 634157. The reversal of 634153 is 351436.

634153 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 can be written as a sum of positive squares in 2 ways, for example, as 51984 + 582169 = 228^2 + 763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634157) 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, 24378 + ... + 24403.

It is an arithmetic number, because the mean of its divisors is an integer number (170737).

2⁶³⁴¹⁵³ is an apocalyptic number.

It is an amenable number.

634153 is a deficient number, since it is larger than the sum of its proper divisors (48795).

634153 is a wasteful number, since it uses less digits than its factorization.

634153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48794.

The product of its digits is 1080, while the sum is 22.

The square root of 634153 is about 796.3372401188. The cubic root of 634153 is about 85.9141472414.

Adding to 634153 its reverse (351436), we get a palindrome (985589).

It can be divided in two parts, 634 and 153, that added together give a palindrome (787).

The spelling of 634153 in words is "six hundred thirty-four thousand, one hundred fifty-three".