1145153644 has 6 divisors (see below), whose sum is σ = 2004018884. Its totient is φ = 572576820.

The previous prime is 1145153627. The next prime is 1145153687. The reversal of 1145153644 is 4463515411.

It is a super-2 number, since 2×1145153644² = 2622753736732957472, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 143144202 + ... + 143144209.

Almost surely, 2^1145153644 is an apocalyptic number.

It is an amenable number.

1145153644 is a deficient number, since it is larger than the sum of its proper divisors (858865240).

1145153644 is a wasteful number, since it uses less digits than its factorization.

1145153644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286288415 (or 286288413 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1145153644 is about 33840.1188532192. The cubic root of 1145153644 is about 1046.2157485812.

The spelling of 1145153644 in words is "one billion, one hundred forty-five million, one hundred fifty-three thousand, six hundred forty-four".