12542450 has 24 divisors (see below), whose sum is σ = 23774148. Its totient is φ = 4921280.

The previous prime is 12542449. The next prime is 12542459. The reversal of 12542450 is 5424521.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3798601 + 8743849 = 1949^2 + 2957^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12542459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284 + ... + 5016.

Almost surely, 2^12542450 is an apocalyptic number.

12542450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542450 is a deficient number, since it is larger than the sum of its proper divisors (11231698).

12542450 is a wasteful number, since it uses less digits than its factorization.

12542450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798 (or 4793 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 12542450 is about 3541.5321543084. The cubic root of 12542450 is about 232.3418587763.

Adding to 12542450 its reverse (5424521), we get a palindrome (17966971).

The spelling of 12542450 in words is "twelve million, five hundred forty-two thousand, four hundred fifty".