1229134823 has 8 divisors (see below), whose sum is σ = 1414154400. Its totient is φ = 1046472480.

The previous prime is 1229134793. The next prime is 1229134831. The reversal of 1229134823 is 3284319221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1229134823 - 2¹⁰ = 1229133799 is a prime.

It is a super-2 number, since 2×1229134823² = 3021544826222482658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229134853) 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, 588188 + ... + 590273.

It is an arithmetic number, because the mean of its divisors is an integer number (176769300).

Almost surely, 2^1229134823 is an apocalyptic number.

1229134823 is a deficient number, since it is larger than the sum of its proper divisors (185019577).

1229134823 is a wasteful number, since it uses less digits than its factorization.

1229134823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178617.

The product of its digits is 20736, while the sum is 35.

The square root of 1229134823 is about 35059.0191391602. The cubic root of 1229134823 is about 1071.1899949551.

The spelling of 1229134823 in words is "one billion, two hundred twenty-nine million, one hundred thirty-four thousand, eight hundred twenty-three".