2014139981 has 16 divisors (see below), whose sum is σ = 2319972864. Its totient is φ = 1712870064.

The previous prime is 2014139951. The next prime is 2014139983. The reversal of 2014139981 is 1899314102.

It is a cyclic number.

It is not a de Polignac number, because 2014139981 - 2¹⁴ = 2014123597 is a prime.

It is a super-2 number, since 2×2014139981² = 8113519726125360722, 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 (2014139983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896846 + ... + 899088.

It is an arithmetic number, because the mean of its divisors is an integer number (144998304).

Almost surely, 2^2014139981 is an apocalyptic number.

It is an amenable number.

2014139981 is a deficient number, since it is larger than the sum of its proper divisors (305832883).

2014139981 is a wasteful number, since it uses less digits than its factorization.

2014139981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 2014139981 is about 44879.1709036609. The cubic root of 2014139981 is about 1262.8832897728.

The spelling of 2014139981 in words is "two billion, fourteen million, one hundred thirty-nine thousand, nine hundred eighty-one".