2140034243 has 4 divisors (see below), whose sum is σ = 2141279448. Its totient is φ = 2138789040.

The previous prime is 2140034227. The next prime is 2140034249. The reversal of 2140034243 is 3424300412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140034243 - 2⁴ = 2140034227 is a prime.

It is a super-2 number, since 2×2140034243² = 9159493122425166098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140034249) 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, 620021 + ... + 623462.

It is an arithmetic number, because the mean of its divisors is an integer number (535319862).

Almost surely, 2^2140034243 is an apocalyptic number.

2140034243 is a deficient number, since it is larger than the sum of its proper divisors (1245205).

2140034243 is a wasteful number, since it uses less digits than its factorization.

2140034243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245204.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2140034243 is about 46260.5041368985. The cubic root of 2140034243 is about 1288.6656159542.

Adding to 2140034243 its reverse (3424300412), we get a palindrome (5564334655).

The spelling of 2140034243 in words is "two billion, one hundred forty million, thirty-four thousand, two hundred forty-three".