172059819 has 16 divisors (see below), whose sum is σ = 234420480. Its totient is φ = 112226400.

The previous prime is 172059793. The next prime is 172059829. The reversal of 172059819 is 918950271.

It is not a de Polignac number, because 172059819 - 2⁵ = 172059787 is a prime.

It is a super-2 number, since 2×172059819² = 59209162628625522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172059829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27517 + ... + 33185.

It is an arithmetic number, because the mean of its divisors is an integer number (14651280).

Almost surely, 2^172059819 is an apocalyptic number.

172059819 is a deficient number, since it is larger than the sum of its proper divisors (62360661).

172059819 is a wasteful number, since it uses less digits than its factorization.

172059819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 172059819 is about 13117.1574283455. The cubic root of 172059819 is about 556.1942403561.

The spelling of 172059819 in words is "one hundred seventy-two million, fifty-nine thousand, eight hundred nineteen".