632130109 has 8 divisors (see below), whose sum is σ = 682780280. Its totient is φ = 581769216.

The previous prime is 632130101. The next prime is 632130167. The reversal of 632130109 is 901031236.

It can be written as a sum of positive squares in 4 ways, for example, as 22534009 + 609596100 = 4747^2 + 24690^2 .

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 632130109 - 2³ = 632130101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632130101) 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, 67764 + ... + 76525.

It is an arithmetic number, because the mean of its divisors is an integer number (85347535).

Almost surely, 2^632130109 is an apocalyptic number.

It is an amenable number.

632130109 is a deficient number, since it is larger than the sum of its proper divisors (50650171).

632130109 is a wasteful number, since it uses less digits than its factorization.

632130109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144639.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 632130109 is about 25142.1977758509. The cubic root of 632130109 is about 858.2269713389.

The spelling of 632130109 in words is "six hundred thirty-two million, one hundred thirty thousand, one hundred nine".