1144664146 has 16 divisors (see below), whose sum is σ = 1754316288. Its totient is φ = 559990800.

The previous prime is 1144664093. The next prime is 1144664149. The reversal of 1144664146 is 6414664411.

It is not an unprimeable number, because it can be changed into a prime (1144664149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260 + ... + 47863.

It is an arithmetic number, because the mean of its divisors is an integer number (109644768).

Almost surely, 2^1144664146 is an apocalyptic number.

1144664146 is a deficient number, since it is larger than the sum of its proper divisors (609652142).

1144664146 is a wasteful number, since it uses less digits than its factorization.

1144664146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49377.

The product of its digits is 55296, while the sum is 37.

The square root of 1144664146 is about 33832.8855701077. The cubic root of 1144664146 is about 1046.0666583971.

The spelling of 1144664146 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, one hundred forty-six".