1144786885 has 32 divisors (see below), whose sum is σ = 1590969600. Its totient is φ = 781532160.

The previous prime is 1144786883. The next prime is 1144786891. The reversal of 1144786885 is 5886874411.

It is not a de Polignac number, because 1144786885 - 2¹ = 1144786883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144786883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409071 + ... + 411859.

It is an arithmetic number, because the mean of its divisors is an integer number (49717800).

Almost surely, 2^1144786885 is an apocalyptic number.

It is an amenable number.

1144786885 is a deficient number, since it is larger than the sum of its proper divisors (446182715).

1144786885 is a wasteful number, since it uses less digits than its factorization.

1144786885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its digits is 1720320, while the sum is 52.

The square root of 1144786885 is about 33834.6994223386. The cubic root of 1144786885 is about 1046.1040459538.

The spelling of 1144786885 in words is "one billion, one hundred forty-four million, seven hundred eighty-six thousand, eight hundred eighty-five".