12275405146 has 4 divisors (see below), whose sum is σ = 18413107722. Its totient is φ = 6137702572.

The previous prime is 12275405137. The next prime is 12275405161. The reversal of 12275405146 is 64150457221.

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., 11667240225 + 608164921 = 108015^2 + 24661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3068851285 + ... + 3068851288.

Almost surely, 2^12275405146 is an apocalyptic number.

12275405146 is a deficient number, since it is larger than the sum of its proper divisors (6137702576).

12275405146 is an equidigital number, since it uses as much as digits as its factorization.

12275405146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137702575.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 12275405146 in words is "twelve billion, two hundred seventy-five million, four hundred five thousand, one hundred forty-six".