1144581146 has 8 divisors (see below), whose sum is σ = 1718540064. Its totient is φ = 571734460.

The previous prime is 1144581143. The next prime is 1144581149. The reversal of 1144581146 is 6411854411.

It is an interprime number because it is at equal distance from previous prime (1144581143) and next prime (1144581149).

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

It is not an unprimeable number, because it can be changed into a prime (1144581143) 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 3 ways as a sum of consecutive naturals, for example, 275480 + ... + 279603.

It is an arithmetic number, because the mean of its divisors is an integer number (214817508).

Almost surely, 2^1144581146 is an apocalyptic number.

1144581146 is a deficient number, since it is larger than the sum of its proper divisors (573958918).

1144581146 is a wasteful number, since it uses less digits than its factorization.

1144581146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556116.

The product of its digits is 15360, while the sum is 35.

The square root of 1144581146 is about 33831.6589306525. The cubic root of 1144581146 is about 1046.0413742322.

The spelling of 1144581146 in words is "one billion, one hundred forty-four million, five hundred eighty-one thousand, one hundred forty-six".