13952981 has 8 divisors (see below), whose sum is σ = 16093440. Its totient is φ = 11849328.

The previous prime is 13952947. The next prime is 13952999. The reversal of 13952981 is 18925931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13952981 - 2¹⁰ = 13951957 is a prime.

It is a super-2 number, since 2×13952981² = 389371357572722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13952921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8381 + ... + 9906.

It is an arithmetic number, because the mean of its divisors is an integer number (2011680).

Almost surely, 2^13952981 is an apocalyptic number.

It is an amenable number.

13952981 is a deficient number, since it is larger than the sum of its proper divisors (2140459).

13952981 is a wasteful number, since it uses less digits than its factorization.

13952981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403.

The product of its digits is 19440, while the sum is 38.

The square root of 13952981 is about 3735.3689242162. The cubic root of 13952981 is about 240.7441083678.

The spelling of 13952981 in words is "thirteen million, nine hundred fifty-two thousand, nine hundred eighty-one".