13997256100 has 27 divisors (see below), whose sum is σ = 30376613281. Its totient is φ = 5598429200.

The previous prime is 13997256089. The next prime is 13997256107. The reversal of 13997256100 is 165279931.

The square root of 13997256100 is 118310.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5039012196 + 8958243904 = 70986^2 + 94648^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13997256107) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1177185 + ... + 1189015.

Almost surely, 2^13997256100 is an apocalyptic number.

13997256100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13997256100 is the 118310-th square number.

It is an amenable number.

13997256100 is an abundant number, since it is smaller than the sum of its proper divisors (16379357181).

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

13997256100 is an frugal number, since it uses more digits than its factorization.

13997256100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23676 (or 11838 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 13997256100 in words is "thirteen billion, nine hundred ninety-seven million, two hundred fifty-six thousand, one hundred".