2114239581 has 6 divisors (see below), whose sum is σ = 3053901630. Its totient is φ = 1409493048.

The previous prime is 2114239553. The next prime is 2114239591. The reversal of 2114239581 is 1859324112.

2114239581 is a `hidden beast` number, since 2 + 1 + 1 + 42 + 39 + 581 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1505828025 + 608411556 = 38805^2 + 24666^2 .

It is not a de Polignac number, because 2114239581 - 2⁵ = 2114239549 is a prime.

It is a super-2 number, since 2×2114239581² = 8940018011734111122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2114239531) 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 5 ways as a sum of consecutive naturals, for example, 117457746 + ... + 117457763.

It is an arithmetic number, because the mean of its divisors is an integer number (508983605).

Almost surely, 2^2114239581 is an apocalyptic number.

It is an amenable number.

2114239581 is a deficient number, since it is larger than the sum of its proper divisors (939662049).

2114239581 is a wasteful number, since it uses less digits than its factorization.

2114239581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234915515 (or 234915512 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2114239581 is about 45980.8610293457. The cubic root of 2114239581 is about 1283.4670776599.

The spelling of 2114239581 in words is "two billion, one hundred fourteen million, two hundred thirty-nine thousand, five hundred eighty-one".