1226653343 has 4 divisors (see below), whose sum is σ = 1298809440. Its totient is φ = 1154497248.

The previous prime is 1226653289. The next prime is 1226653387. The reversal of 1226653343 is 3433566221.

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 1226653343 - 2¹⁴ = 1226636959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226653543) 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, 36078023 + ... + 36078056.

It is an arithmetic number, because the mean of its divisors is an integer number (324702360).

Almost surely, 2^1226653343 is an apocalyptic number.

1226653343 is a deficient number, since it is larger than the sum of its proper divisors (72156097).

1226653343 is an equidigital number, since it uses as much as digits as its factorization.

1226653343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72156096.

The product of its digits is 77760, while the sum is 35.

The square root of 1226653343 is about 35023.6112215745. The cubic root of 1226653343 is about 1070.4686400284.

The spelling of 1226653343 in words is "one billion, two hundred twenty-six million, six hundred fifty-three thousand, three hundred forty-three".