2140022523 has 4 divisors (see below), whose sum is σ = 2853363368. Its totient is φ = 1426681680.

The previous prime is 2140022513. The next prime is 2140022527. The reversal of 2140022523 is 3252200412.

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

It is not a de Polignac number, because 2140022523 - 2⁹ = 2140022011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140022523.

It is not an unprimeable number, because it can be changed into a prime (2140022527) 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, 356670418 + ... + 356670423.

It is an arithmetic number, because the mean of its divisors is an integer number (713340842).

Almost surely, 2^2140022523 is an apocalyptic number.

2140022523 is a deficient number, since it is larger than the sum of its proper divisors (713340845).

2140022523 is an equidigital number, since it uses as much as digits as its factorization.

2140022523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713340844.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2140022523 is about 46260.3774627921. The cubic root of 2140022523 is about 1288.6632634703.

Adding to 2140022523 its reverse (3252200412), we get a palindrome (5392222935).

The spelling of 2140022523 in words is "two billion, one hundred forty million, twenty-two thousand, five hundred twenty-three".