1145331 has 24 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 662640.

The previous prime is 1145329. The next prime is 1145359. The reversal of 1145331 is 1335411.

It is not a de Polignac number, because 1145331 - 2¹ = 1145329 is a prime.

It is a super-2 number, since 2×1145331² = 2623566199122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) 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 (1145311) 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 23 ways as a sum of consecutive naturals, for example, 2026 + ... + 2528.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^1145331 is an apocalyptic number.

1145331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1145331 is a deficient number, since it is larger than the sum of its proper divisors (741645).

1145331 is a wasteful number, since it uses less digits than its factorization.

1145331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 540 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1145331 is about 1070.2013829182. The cubic root of 1145331 is about 104.6269756781.

It can be divided in two parts, 114 and 5331, that added together give a palindrome (5445).

The spelling of 1145331 in words is "one million, one hundred forty-five thousand, three hundred thirty-one".