172050140 has 12 divisors (see below), whose sum is σ = 361305336. Its totient is φ = 68820048.

The previous prime is 172050139. The next prime is 172050211. The reversal of 172050140 is 41050271.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 8602507 = 172050140 / (1 + 7 + 2 + 0 + 5 + 0 + 1 + 4 + 0).

It is a congruent 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, 4301234 + ... + 4301273.

It is an arithmetic number, because the mean of its divisors is an integer number (30108778).

Almost surely, 2^172050140 is an apocalyptic number.

172050140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172050140 is an abundant number, since it is smaller than the sum of its proper divisors (189255196).

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

172050140 is a wasteful number, since it uses less digits than its factorization.

172050140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8602516 (or 8602514 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 172050140 is about 13116.7884788922. The cubic root of 172050140 is about 556.1838108341.

The spelling of 172050140 in words is "one hundred seventy-two million, fifty thousand, one hundred forty".