12494138 has 4 divisors (see below), whose sum is σ = 18741210. Its totient is φ = 6247068.

The previous prime is 12494137. The next prime is 12494149. The reversal of 12494138 is 83149421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 954529 = 3397^2 + 977^2 .

It is a super-2 number, since 2×12494138² = 312206968726088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12494137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3123533 + ... + 3123536.

Almost surely, 2^12494138 is an apocalyptic number.

12494138 is a deficient number, since it is larger than the sum of its proper divisors (6247072).

12494138 is an equidigital number, since it uses as much as digits as its factorization.

12494138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247071.

The product of its digits is 6912, while the sum is 32.

The square root of 12494138 is about 3534.7047967263. The cubic root of 12494138 is about 232.0431573498.

It can be divided in two parts, 1249413 and 8, that added together give a palindrome (1249421).

The spelling of 12494138 in words is "twelve million, four hundred ninety-four thousand, one hundred thirty-eight".