13099572 has 36 divisors (see below), whose sum is σ = 33613216. Its totient is φ = 4300560.

The previous prime is 13099523. The next prime is 13099601. The reversal of 13099572 is 27599031.

13099572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304 + ... + 5127.

Almost surely, 2^13099572 is an apocalyptic number.

13099572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13099572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16806608).

13099572 is an abundant number, since it is smaller than the sum of its proper divisors (20513644).

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

13099572 is a wasteful number, since it uses less digits than its factorization.

13099572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 13099572 is about 3619.3330877387. Note that the first 3 decimals coincide. The cubic root of 13099572 is about 235.7322684431.

The spelling of 13099572 in words is "thirteen million, ninety-nine thousand, five hundred seventy-two".