2542123 has 4 divisors (see below), whose sum is σ = 2604168. Its totient is φ = 2480080.

The previous prime is 2542109. The next prime is 2542139. The reversal of 2542123 is 3212452.

2542123 = T₂ + T₃ + ... + T₂₄₇.

2542123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2542123 - 2⁵ = 2542091 is a prime.

It is an Ulam number.

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 2542123.

It is not an unprimeable number, because it can be changed into a prime (2542103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30961 + ... + 31042.

It is an arithmetic number, because the mean of its divisors is an integer number (651042).

2^2542123 is an apocalyptic number.

2542123 is a deficient number, since it is larger than the sum of its proper divisors (62045).

2542123 is an equidigital number, since it uses as much as digits as its factorization.

2542123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62044.

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

The square root of 2542123 is about 1594.4036502718. The cubic root of 2542123 is about 136.4789020423.

Adding to 2542123 its reverse (3212452), we get a palindrome (5754575).

The spelling of 2542123 in words is "two million, five hundred forty-two thousand, one hundred twenty-three".