12542554 has 8 divisors (see below), whose sum is σ = 18851508. Its totient is φ = 6258720.

The previous prime is 12542539. The next prime is 12542557. The reversal of 12542554 is 45524521.

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 2449225 = 3177^2 + 1565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12542557) 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, 4977 + ... + 7060.

Almost surely, 2^12542554 is an apocalyptic number.

12542554 is a deficient number, since it is larger than the sum of its proper divisors (6308954).

12542554 is a wasteful number, since it uses less digits than its factorization.

12542554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560.

The product of its digits is 8000, while the sum is 28.

The square root of 12542554 is about 3541.5468371885. The cubic root of 12542554 is about 232.3425009551.

The spelling of 12542554 in words is "twelve million, five hundred forty-two thousand, five hundred fifty-four".