12275506 has 4 divisors (see below), whose sum is σ = 18413262. Its totient is φ = 6137752.

The previous prime is 12275449. The next prime is 12275509. The reversal of 12275506 is 60557221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60557221 = 5639 ⋅10739.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 1418481 = 3295^2 + 1191^2 .

It is not an unprimeable number, because it can be changed into a prime (12275509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3068875 + ... + 3068878.

Almost surely, 2^12275506 is an apocalyptic number.

12275506 is a deficient number, since it is larger than the sum of its proper divisors (6137756).

12275506 is an equidigital number, since it uses as much as digits as its factorization.

12275506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137755.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 12275506 is about 3503.6418195929. The cubic root of 12275506 is about 230.6816952389.

The spelling of 12275506 in words is "twelve million, two hundred seventy-five thousand, five hundred six".