12542900 has 18 divisors (see below), whose sum is σ = 27218310. Its totient is φ = 5017120.

The previous prime is 12542899. The next prime is 12542911. The reversal of 12542900 is 924521.

12542900 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 3 ways, for example, as 110224 + 12432676 = 332^2 + 3526^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62615 + ... + 62814.

Almost surely, 2^12542900 is an apocalyptic number.

12542900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542900 is an abundant number, since it is smaller than the sum of its proper divisors (14675410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12542900 is a wasteful number, since it uses less digits than its factorization.

12542900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125443 (or 125436 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12542900 is about 3541.5956855632. The cubic root of 12542900 is about 232.3446374090.

The spelling of 12542900 in words is "twelve million, five hundred forty-two thousand, nine hundred".