1226129349 has 8 divisors (see below), whose sum is σ = 1635337312. Its totient is φ = 817170480.

The previous prime is 1226129323. The next prime is 1226129353. The reversal of 1226129349 is 9439216221.

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

It is not a de Polignac number, because 1226129349 - 2⁹ = 1226128837 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 (1226129249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50467 + ... + 70704.

It is an arithmetic number, because the mean of its divisors is an integer number (204417164).

Almost surely, 2^1226129349 is an apocalyptic number.

It is an amenable number.

1226129349 is a deficient number, since it is larger than the sum of its proper divisors (409207963).

1226129349 is a wasteful number, since it uses less digits than its factorization.

1226129349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124547.

The product of its digits is 46656, while the sum is 39.

The square root of 1226129349 is about 35016.1298404036. The cubic root of 1226129349 is about 1070.3161929831.

The spelling of 1226129349 in words is "one billion, two hundred twenty-six million, one hundred twenty-nine thousand, three hundred forty-nine".