172513012 has 12 divisors (see below), whose sum is σ = 345026080. Its totient is φ = 73934136.

The previous prime is 172513001. The next prime is 172513021. The reversal of 172513012 is 210315271.

It is a happy number.

172513012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 3080562 + ... + 3080617.

Almost surely, 2^172513012 is an apocalyptic number.

It is an amenable number.

172513012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

172513012 is a wasteful number, since it uses less digits than its factorization.

172513012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161190 (or 6161188 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 172513012 is about 13134.4208855967. The cubic root of 172513012 is about 556.6821372508.

Adding to 172513012 its reverse (210315271), we get a palindrome (382828283).

The spelling of 172513012 in words is "one hundred seventy-two million, five hundred thirteen thousand, twelve".