172747130 has 8 divisors (see below), whose sum is σ = 310944852. Its totient is φ = 69098848.

The previous prime is 172747111. The next prime is 172747147. The reversal of 172747130 is 31747271.

It can be written as a sum of positive squares in 2 ways, for example, as 172475689 + 271441 = 13133^2 + 521^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8637347 + ... + 8637366.

Almost surely, 2^172747130 is an apocalyptic number.

172747130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172747130 is a deficient number, since it is larger than the sum of its proper divisors (138197722).

172747130 is a wasteful number, since it uses less digits than its factorization.

172747130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17274720.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 172747130 is about 13143.3302476960. The cubic root of 172747130 is about 556.9338484980.

The spelling of 172747130 in words is "one hundred seventy-two million, seven hundred forty-seven thousand, one hundred thirty".