172572841 has 16 divisors (see below), whose sum is σ = 206244864. Its totient is φ = 141183504.

The previous prime is 172572793. The next prime is 172572871. The reversal of 172572841 is 148275271.

It is not a de Polignac number, because 172572841 - 2⁷ = 172572713 is a prime.

It is a super-2 number, since 2×172572841² = 59562770901622562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172572841.

It is not an unprimeable number, because it can be changed into a prime (172572871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102690 + ... + 104356.

It is an arithmetic number, because the mean of its divisors is an integer number (12890304).

Almost surely, 2^172572841 is an apocalyptic number.

It is an amenable number.

172572841 is a deficient number, since it is larger than the sum of its proper divisors (33672023).

172572841 is a wasteful number, since it uses less digits than its factorization.

172572841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its digits is 31360, while the sum is 37.

The square root of 172572841 is about 13136.6982533664. The cubic root of 172572841 is about 556.7464838677.

The spelling of 172572841 in words is "one hundred seventy-two million, five hundred seventy-two thousand, eight hundred forty-one".