13981275 has 96 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 5788800.

The previous prime is 13981273. The next prime is 13981291. The reversal of 13981275 is 57218931.

It is not a de Polignac number, because 13981275 - 2¹ = 13981273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13981273) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51841 + ... + 52109.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

Almost surely, 2^13981275 is an apocalyptic number.

13981275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13981275 is an abundant number, since it is smaller than the sum of its proper divisors (18159525).

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

13981275 is a wasteful number, since it uses less digits than its factorization.

13981275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 295 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 13981275 is about 3739.1543161522. The cubic root of 13981275 is about 240.9067263002.

The spelling of 13981275 in words is "thirteen million, nine hundred eighty-one thousand, two hundred seventy-five".