1612226243 has 4 divisors (see below), whose sum is σ = 1634311608. Its totient is φ = 1590140880.

The previous prime is 1612226227. The next prime is 1612226251. The reversal of 1612226243 is 3426222161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1612226243 - 2⁴ = 1612226227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612226543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11042573 + ... + 11042718.

It is an arithmetic number, because the mean of its divisors is an integer number (408577902).

Almost surely, 2^1612226243 is an apocalyptic number.

1612226243 is a deficient number, since it is larger than the sum of its proper divisors (22085365).

1612226243 is an equidigital number, since it uses as much as digits as its factorization.

1612226243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22085364.

The product of its digits is 6912, while the sum is 29.

The square root of 1612226243 is about 40152.5371925611. The cubic root of 1612226243 is about 1172.5786850024.

The spelling of 1612226243 in words is "one billion, six hundred twelve million, two hundred twenty-six thousand, two hundred forty-three".