1226734123 has 4 divisors (see below), whose sum is σ = 1227232648. Its totient is φ = 1226235600.

The previous prime is 1226734099. The next prime is 1226734129. The reversal of 1226734123 is 3214376221.

It is a happy number.

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 1226734123 - 2¹³ = 1226725931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226734129) 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, 245553 + ... + 250498.

It is an arithmetic number, because the mean of its divisors is an integer number (306808162).

Almost surely, 2^1226734123 is an apocalyptic number.

1226734123 is a deficient number, since it is larger than the sum of its proper divisors (498525).

1226734123 is an equidigital number, since it uses as much as digits as its factorization.

1226734123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498524.

The product of its digits is 12096, while the sum is 31.

The square root of 1226734123 is about 35024.7644246182. The cubic root of 1226734123 is about 1070.4921377181.

The spelling of 1226734123 in words is "one billion, two hundred twenty-six million, seven hundred thirty-four thousand, one hundred twenty-three".