172135630 has 48 divisors (see below), whose sum is σ = 335273904. Its totient is φ = 63584640.

The previous prime is 172135603. The next prime is 172135631. The reversal of 172135630 is 36531271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172135631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147429 + ... + 148591.

It is an arithmetic number, because the mean of its divisors is an integer number (6984873).

Almost surely, 2^172135630 is an apocalyptic number.

172135630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172135630 is a deficient number, since it is larger than the sum of its proper divisors (163138274).

172135630 is a wasteful number, since it uses less digits than its factorization.

172135630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 172135630 is about 13120.0468749163. The cubic root of 172135630 is about 556.2759163113.

The spelling of 172135630 in words is "one hundred seventy-two million, one hundred thirty-five thousand, six hundred thirty".