12137746 has 4 divisors (see below), whose sum is σ = 18206622. Its totient is φ = 6068872.

The previous prime is 12137743. The next prime is 12137753. The reversal of 12137746 is 64773121.

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., 11256025 + 881721 = 3355^2 + 939^2 .

It is not an unprimeable number, because it can be changed into a prime (12137743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3034435 + ... + 3034438.

Almost surely, 2^12137746 is an apocalyptic number.

12137746 is a deficient number, since it is larger than the sum of its proper divisors (6068876).

12137746 is an equidigital number, since it uses as much as digits as its factorization.

12137746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6068875.

The product of its digits is 7056, while the sum is 31.

The square root of 12137746 is about 3483.9268074975. The cubic root of 12137746 is about 229.8155168418.

The spelling of 12137746 in words is "twelve million, one hundred thirty-seven thousand, seven hundred forty-six".