172743172 has 12 divisors (see below), whose sum is σ = 345486400. Its totient is φ = 74032776.

The previous prime is 172743157. The next prime is 172743187. The reversal of 172743172 is 271347271.

It is an interprime number because it is at equal distance from previous prime (172743157) and next prime (172743187).

172743172 is an admirable number.

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, 3084672 + ... + 3084727.

Almost surely, 2^172743172 is an apocalyptic number.

It is an amenable number.

172743172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172743172 is a wasteful number, since it uses less digits than its factorization.

172743172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169410 (or 6169408 counting only the distinct ones).

The product of its digits is 16464, while the sum is 34.

The square root of 172743172 is about 13143.1796761666. The cubic root of 172743172 is about 556.9295949570.

The spelling of 172743172 in words is "one hundred seventy-two million, seven hundred forty-three thousand, one hundred seventy-two".