1145289826 has 16 divisors (see below), whose sum is σ = 1776484224. Its totient is φ = 553451184.

The previous prime is 1145289811. The next prime is 1145289839. The reversal of 1145289826 is 6289825411.

It is a super-2 number, since 2×1145289826² = 2623377571078220552, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73530 + ... + 87733.

It is an arithmetic number, because the mean of its divisors is an integer number (111030264).

Almost surely, 2^1145289826 is an apocalyptic number.

1145289826 is a deficient number, since it is larger than the sum of its proper divisors (631194398).

1145289826 is a wasteful number, since it uses less digits than its factorization.

1145289826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161385.

The product of its digits is 276480, while the sum is 46.

The square root of 1145289826 is about 33842.1309317247. The cubic root of 1145289826 is about 1046.2572190297.

The spelling of 1145289826 in words is "one billion, one hundred forty-five million, two hundred eighty-nine thousand, eight hundred twenty-six".