172418612 has 12 divisors (see below), whose sum is σ = 309092196. Its totient is φ = 84106560.

The previous prime is 172418611. The next prime is 172418633. The reversal of 172418612 is 216814271.

It is a happy number.

172418612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6421156 + 165997456 = 2534^2 + 12884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172418611) 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 3 ways as a sum of consecutive naturals, for example, 525503 + ... + 525830.

It is an arithmetic number, because the mean of its divisors is an integer number (25757683).

Almost surely, 2^172418612 is an apocalyptic number.

It is an amenable number.

172418612 is a deficient number, since it is larger than the sum of its proper divisors (136673584).

172418612 is a wasteful number, since it uses less digits than its factorization.

172418612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051378 (or 1051376 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 172418612 is about 13130.8267828039. The cubic root of 172418612 is about 556.5805789559.

The spelling of 172418612 in words is "one hundred seventy-two million, four hundred eighteen thousand, six hundred twelve".