13173012 has 36 divisors (see below), whose sum is σ = 33443956. Its totient is φ = 4371840.

The previous prime is 13173001. The next prime is 13173029. The reversal of 13173012 is 21037131.

It can be written as a sum of positive squares in 2 ways, for example, as 7584516 + 5588496 = 2754^2 + 2364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9312 + ... + 10632.

Almost surely, 2^13173012 is an apocalyptic number.

13173012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13173012 is an abundant number, since it is smaller than the sum of its proper divisors (20270944).

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

13173012 is a wasteful number, since it uses less digits than its factorization.

13173012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 13173012 is about 3629.4644232999. The cubic root of 13173012 is about 236.1719755781.

The spelling of 13173012 in words is "thirteen million, one hundred seventy-three thousand, twelve".