14345981 has 8 divisors (see below), whose sum is σ = 15982680. Its totient is φ = 12785472.

The previous prime is 14345971. The next prime is 14345983. The reversal of 14345981 is 18954341.

14345981 = T₆₅ + T₆₆ + ... + T₄₄₁.

It can be written as a sum of positive squares in 4 ways, for example, as 403225 + 13942756 = 635^2 + 3734^2 .

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 14345981 - 2⁶ = 14345917 is a prime.

It is a super-2 number, since 2×14345981² = 411614341704722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14345983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18650 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (1997835).

Almost surely, 2^14345981 is an apocalyptic number.

It is an amenable number.

14345981 is a deficient number, since it is larger than the sum of its proper divisors (1636699).

14345981 is a wasteful number, since it uses less digits than its factorization.

14345981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38095.

The product of its digits is 17280, while the sum is 35.

The square root of 14345981 is about 3787.6088763229. The cubic root of 14345981 is about 242.9834815215.

The spelling of 14345981 in words is "fourteen million, three hundred forty-five thousand, nine hundred eighty-one".