172401190 has 32 divisors (see below), whose sum is σ = 341976096. Its totient is φ = 62173440.

The previous prime is 172401157. The next prime is 172401191. The reversal of 172401190 is 91104271.

172401190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172401190² = 59444340626832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172401191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9831 + ... + 21010.

It is an arithmetic number, because the mean of its divisors is an integer number (10686753).

Almost surely, 2^172401190 is an apocalyptic number.

172401190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172401190 is a deficient number, since it is larger than the sum of its proper divisors (169574906).

172401190 is a wasteful number, since it uses less digits than its factorization.

172401190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30904.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 172401190 is about 13130.1633653203. The cubic root of 172401190 is about 556.5618318045.

The spelling of 172401190 in words is "one hundred seventy-two million, four hundred one thousand, one hundred ninety".