12506146 has 4 divisors (see below), whose sum is σ = 18759222. Its totient is φ = 6253072.

The previous prime is 12506083. The next prime is 12506147. The reversal of 12506146 is 64160521.

12506146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64160521 = 5393 ⋅11897.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 1357225 = 3339^2 + 1165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12506146.

It is not an unprimeable number, because it can be changed into a prime (12506147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126535 + ... + 3126538.

Almost surely, 2^12506146 is an apocalyptic number.

12506146 is a deficient number, since it is larger than the sum of its proper divisors (6253076).

12506146 is an equidigital number, since it uses as much as digits as its factorization.

12506146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253075.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12506146 is about 3536.4029747754. The cubic root of 12506146 is about 232.1174717217.

Adding to 12506146 its reverse (64160521), we get a palindrome (76666667).

It can be divided in two parts, 1250 and 6146, that added together give a square (7396 = 86²).

The spelling of 12506146 in words is "twelve million, five hundred six thousand, one hundred forty-six".