172051226 has 8 divisors (see below), whose sum is σ = 258431124. Its totient is φ = 85907520.

The previous prime is 172051189. The next prime is 172051259. The reversal of 172051226 is 622150271.

It can be written as a sum of positive squares in 2 ways, for example, as 162435025 + 9616201 = 12745^2 + 3101^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 172051195 and 172051204.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 57215 + ... + 60146.

Almost surely, 2^172051226 is an apocalyptic number.

172051226 is a deficient number, since it is larger than the sum of its proper divisors (86379898).

172051226 is a wasteful number, since it uses less digits than its factorization.

172051226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118096.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 172051226 is about 13116.8298761553. The cubic root of 172051226 is about 556.1849810634.

The spelling of 172051226 in words is "one hundred seventy-two million, fifty-one thousand, two hundred twenty-six".