14935981 has 4 divisors (see below), whose sum is σ = 15083964. Its totient is φ = 14788000.

The previous prime is 14935969. The next prime is 14936003. The reversal of 14935981 is 18953941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13995081 + 940900 = 3741^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 14935981 - 2¹⁹ = 14411693 is a prime.

It is a super-2 number, since 2×14935981² = 446167056864722, 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 (14935951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73840 + ... + 74041.

It is an arithmetic number, because the mean of its divisors is an integer number (3770991).

Almost surely, 2^14935981 is an apocalyptic number.

It is an amenable number.

14935981 is a deficient number, since it is larger than the sum of its proper divisors (147983).

14935981 is a wasteful number, since it uses less digits than its factorization.

14935981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147982.

The product of its digits is 38880, while the sum is 40.

The square root of 14935981 is about 3864.7096915551. The cubic root of 14935981 is about 246.2698528146.

The spelling of 14935981 in words is "fourteen million, nine hundred thirty-five thousand, nine hundred eighty-one".