13166972 has 48 divisors (see below), whose sum is σ = 28873152. Its totient is φ = 5114880.

The previous prime is 13166963. The next prime is 13166983. The reversal of 13166972 is 27966131.

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 15 ways as a sum of consecutive naturals, for example, 21908 + ... + 22500.

It is an arithmetic number, because the mean of its divisors is an integer number (601524).

Almost surely, 2^13166972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13166972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14436576).

13166972 is an abundant number, since it is smaller than the sum of its proper divisors (15706180).

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

13166972 is a wasteful number, since it uses less digits than its factorization.

13166972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 13166972 is about 3628.6322492091. The cubic root of 13166972 is about 236.1358740697.

The spelling of 13166972 in words is "thirteen million, one hundred sixty-six thousand, nine hundred seventy-two".