1145639883 has 16 divisors (see below), whose sum is σ = 1550762496. Its totient is φ = 752162880.

The previous prime is 1145639857. The next prime is 1145639921. The reversal of 1145639883 is 3889365411.

It is not a de Polignac number, because 1145639883 - 2¹⁴ = 1145623499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145639483) 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 15 ways as a sum of consecutive naturals, for example, 231210 + ... + 236112.

It is an arithmetic number, because the mean of its divisors is an integer number (96922656).

Almost surely, 2^1145639883 is an apocalyptic number.

1145639883 is a deficient number, since it is larger than the sum of its proper divisors (405122613).

1145639883 is a wasteful number, since it uses less digits than its factorization.

1145639883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074.

The product of its digits is 622080, while the sum is 48.

The square root of 1145639883 is about 33847.3024479057. The cubic root of 1145639883 is about 1046.3638040899.

The spelling of 1145639883 in words is "one billion, one hundred forty-five million, six hundred thirty-nine thousand, eight hundred eighty-three".