172122276 has 24 divisors (see below), whose sum is σ = 401964640. Its totient is φ = 57324672.

The previous prime is 172122257. The next prime is 172122289. The reversal of 172122276 is 672221271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10035 + ... + 21093.

Almost surely, 2^172122276 is an apocalyptic number.

It is an amenable number.

172122276 is an abundant number, since it is smaller than the sum of its proper divisors (229842364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172122276 is a wasteful number, since it uses less digits than its factorization.

172122276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363 (or 12361 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 172122276 is about 13119.5379491810. The cubic root of 172122276 is about 556.2615309481.

The spelling of 172122276 in words is "one hundred seventy-two million, one hundred twenty-two thousand, two hundred seventy-six".