172470019 has 8 divisors (see below), whose sum is σ = 180474752. Its totient is φ = 164617920.

The previous prime is 172470007. The next prime is 172470041. The reversal of 172470019 is 910074271.

172470019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 172470019 - 2¹³ = 172461827 is a prime.

It is a super-2 number, since 2×172470019² = 59491814907720722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172470059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35844 + ... + 40369.

It is an arithmetic number, because the mean of its divisors is an integer number (22559344).

Almost surely, 2^172470019 is an apocalyptic number.

172470019 is a deficient number, since it is larger than the sum of its proper divisors (8004733).

172470019 is an equidigital number, since it uses as much as digits as its factorization.

172470019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76317.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 172470019 is about 13132.7841298028. The cubic root of 172470019 is about 556.6358887131.

The spelling of 172470019 in words is "one hundred seventy-two million, four hundred seventy thousand, nineteen".