1129844146 has 4 divisors (see below), whose sum is σ = 1694766222. Its totient is φ = 564922072.

The previous prime is 1129844129. The next prime is 1129844153. The reversal of 1129844146 is 6414489211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1048140625 + 81703521 = 32375^2 + 9039^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1129844099 and 1129844108.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 282461035 + ... + 282461038.

Almost surely, 2^1129844146 is an apocalyptic number.

1129844146 is a deficient number, since it is larger than the sum of its proper divisors (564922076).

1129844146 is an equidigital number, since it uses as much as digits as its factorization.

1129844146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564922075.

The product of its digits is 55296, while the sum is 40.

The square root of 1129844146 is about 33613.1543595658. The cubic root of 1129844146 is about 1041.5325488283.

The spelling of 1129844146 in words is "one billion, one hundred twenty-nine million, eight hundred forty-four thousand, one hundred forty-six".