172146466 has 8 divisors (see below), whose sum is σ = 258281424. Its totient is φ = 86052660.

The previous prime is 172146461. The next prime is 172146497. The reversal of 172146466 is 664641271.

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

It is not an unprimeable number, because it can be changed into a prime (172146461) 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, 4321 + ... + 19051.

It is an arithmetic number, because the mean of its divisors is an integer number (32285178).

Almost surely, 2^172146466 is an apocalyptic number.

172146466 is a deficient number, since it is larger than the sum of its proper divisors (86134958).

172146466 is a wasteful number, since it uses less digits than its factorization.

172146466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20576.

The product of its digits is 48384, while the sum is 37.

The square root of 172146466 is about 13120.4598242592. The cubic root of 172146466 is about 556.2875886563.

The spelling of 172146466 in words is "one hundred seventy-two million, one hundred forty-six thousand, four hundred sixty-six".