2142523 has 2 divisors, whose sum is σ = 2142524. Its totient is φ = 2142522.

The previous prime is 2142521. The next prime is 2142529. The reversal of 2142523 is 3252412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142523 - 2¹ = 2142521 is a prime.

Together with 2142521, it forms a pair of twin primes.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 2142523.

It is not a weakly prime, because it can be changed into another prime (2142521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071261 + 1071262.

It is an arithmetic number, because the mean of its divisors is an integer number (1071262).

2^2142523 is an apocalyptic number.

2142523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142523 is an equidigital number, since it uses as much as digits as its factorization.

2142523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 19.

The square root of 2142523 is about 1463.7359734597. The cubic root of 2142523 is about 128.9164974492.

Adding to 2142523 its reverse (3252412), we get a palindrome (5394935).

The spelling of 2142523 in words is "two million, one hundred forty-two thousand, five hundred twenty-three".