1229145336 has 48 divisors (see below), whose sum is σ = 3331326960. Its totient is φ = 409420800.

The previous prime is 1229145331. The next prime is 1229145343. The reversal of 1229145336 is 6335419221.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1229145336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229145331) 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 11 ways as a sum of consecutive naturals, for example, 109941 + ... + 120603.

It is an arithmetic number, because the mean of its divisors is an integer number (69402645).

Almost surely, 2^1229145336 is an apocalyptic number.

It is an amenable number.

1229145336 is an abundant number, since it is smaller than the sum of its proper divisors (2102181624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229145336 is a wasteful number, since it uses less digits than its factorization.

1229145336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276 (or 12269 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1229145336 is about 35059.1690717279. The cubic root of 1229145336 is about 1071.1930489701.

The spelling of 1229145336 in words is "one billion, two hundred twenty-nine million, one hundred forty-five thousand, three hundred thirty-six".