12149722 has 8 divisors (see below), whose sum is σ = 19626516. Its totient is φ = 5607552.

The previous prime is 12149719. The next prime is 12149723. The reversal of 12149722 is 22794121.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 2792241 = 3059^2 + 1671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12149723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233623 + ... + 233674.

Almost surely, 2^12149722 is an apocalyptic number.

12149722 is a deficient number, since it is larger than the sum of its proper divisors (7476794).

12149722 is a wasteful number, since it uses less digits than its factorization.

12149722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467312.

The product of its digits is 2016, while the sum is 28.

The square root of 12149722 is about 3485.6451339745. The cubic root of 12149722 is about 229.8910763383.

The spelling of 12149722 in words is "twelve million, one hundred forty-nine thousand, seven hundred twenty-two".