1144187912 has 32 divisors (see below), whose sum is σ = 2464176000. Its totient is φ = 487897344.

The previous prime is 1144187909. The next prime is 1144187917. The reversal of 1144187912 is 2197814411.

It is not an unprimeable number, because it can be changed into a prime (1144187917) 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, 40193 + ... + 62480.

It is an arithmetic number, because the mean of its divisors is an integer number (77005500).

Almost surely, 2^1144187912 is an apocalyptic number.

It is an amenable number.

1144187912 is an abundant number, since it is smaller than the sum of its proper divisors (1319988088).

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

1144187912 is a wasteful number, since it uses less digits than its factorization.

1144187912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102885 (or 102881 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 1144187912 is about 33825.8468038865. The cubic root of 1144187912 is about 1045.9215673343.

The spelling of 1144187912 in words is "one billion, one hundred forty-four million, one hundred eighty-seven thousand, nine hundred twelve".