12542623 has 4 divisors (see below), whose sum is σ = 12596688. Its totient is φ = 12488560.

The previous prime is 12542611. The next prime is 12542639. The reversal of 12542623 is 32624521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32624521 = 53 ⋅615557.

It is a cyclic number.

It is not a de Polignac number, because 12542623 - 2⁵ = 12542591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542653) 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, 26683 + ... + 27148.

It is an arithmetic number, because the mean of its divisors is an integer number (3149172).

Almost surely, 2^12542623 is an apocalyptic number.

12542623 is a deficient number, since it is larger than the sum of its proper divisors (54065).

12542623 is an equidigital number, since it uses as much as digits as its factorization.

12542623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54064.

The product of its digits is 2880, while the sum is 25.

The square root of 12542623 is about 3541.5565786812. The cubic root of 12542623 is about 232.3429270140.

The spelling of 12542623 in words is "twelve million, five hundred forty-two thousand, six hundred twenty-three".