1223498156 has 12 divisors (see below), whose sum is σ = 2234214192. Its totient is φ = 585151248.

The previous prime is 1223498147. The next prime is 1223498191. The reversal of 1223498156 is 6518943221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649355 + ... + 6649538.

It is an arithmetic number, because the mean of its divisors is an integer number (186184516).

Almost surely, 2^1223498156 is an apocalyptic number.

It is an amenable number.

1223498156 is a deficient number, since it is larger than the sum of its proper divisors (1010716036).

1223498156 is a wasteful number, since it uses less digits than its factorization.

1223498156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13298920 (or 13298918 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 1223498156 is about 34978.5385057752. The cubic root of 1223498156 is about 1069.5500352776.

The spelling of 1223498156 in words is "one billion, two hundred twenty-three million, four hundred ninety-eight thousand, one hundred fifty-six".