13981451 has 16 divisors (see below), whose sum is σ = 16178400. Its totient is φ = 11961600.

The previous prime is 13981441. The next prime is 13981459. The reversal of 13981451 is 15418931.

It is a cyclic number.

It is not a de Polignac number, because 13981451 - 2¹⁰ = 13980427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13981459) by changing a digit.

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, 12545 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (1011150).

Almost surely, 2^13981451 is an apocalyptic number.

13981451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13981451 is a deficient number, since it is larger than the sum of its proper divisors (2196949).

13981451 is a wasteful number, since it uses less digits than its factorization.

13981451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150.

The product of its digits is 4320, while the sum is 32.

The square root of 13981451 is about 3739.1778508116. The cubic root of 13981451 is about 240.9077371619.

The spelling of 13981451 in words is "thirteen million, nine hundred eighty-one thousand, four hundred fifty-one".