1144199512 has 8 divisors (see below), whose sum is σ = 2145374100. Its totient is φ = 572099752.

The previous prime is 1144199479. The next prime is 1144199519. The reversal of 1144199512 is 2159914411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1144199512² = 2618385046522076288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144199519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71512462 + ... + 71512477.

Almost surely, 2^1144199512 is an apocalyptic number.

It is an amenable number.

1144199512 is a deficient number, since it is larger than the sum of its proper divisors (1001174588).

1144199512 is a wasteful number, since it uses less digits than its factorization.

1144199512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143024945 (or 143024941 counting only the distinct ones).

The product of its digits is 12960, while the sum is 37.

The square root of 1144199512 is about 33826.0182699649. The cubic root of 1144199512 is about 1045.9251019079.

The spelling of 1144199512 in words is "one billion, one hundred forty-four million, one hundred ninety-nine thousand, five hundred twelve".