1145533 has 2 divisors, whose sum is σ = 1145534. Its totient is φ = 1145532.

The previous prime is 1145509. The next prime is 1145537. The reversal of 1145533 is 3355411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1127844 + 17689 = 1062^2 + 133^2 .

It is an emirp because it is prime and its reverse (3355411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145533 - 2⁹ = 1145021 is a prime.

1145533 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145537) 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 as a sum of consecutive naturals, namely, 572766 + 572767.

It is an arithmetic number, because the mean of its divisors is an integer number (572767).

2^1145533 is an apocalyptic number.

It is an amenable number.

1145533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145533 is an equidigital number, since it uses as much as digits as its factorization.

1145533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 22.

The square root of 1145533 is about 1070.2957535186. The cubic root of 1145533 is about 104.6331262747.

It can be divided in two parts, 11455 and 33, that multiplied together give a triangular number (378015 = T₈₆₉).

The spelling of 1145533 in words is "one million, one hundred forty-five thousand, five hundred thirty-three".