7145533 has 2 divisors, whose sum is σ = 7145534. Its totient is φ = 7145532.

The previous prime is 7145527. The next prime is 7145557. The reversal of 7145533 is 3355417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5769604 + 1375929 = 2402^2 + 1173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7145533 is a prime.

7145533 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7145503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572766 + 3572767.

It is an arithmetic number, because the mean of its divisors is an integer number (3572767).

Almost surely, 2^7145533 is an apocalyptic number.

It is an amenable number.

7145533 is a deficient number, since it is larger than the sum of its proper divisors (1).

7145533 is an equidigital number, since it uses as much as digits as its factorization.

7145533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 28.

The square root of 7145533 is about 2673.1129792809. The cubic root of 7145533 is about 192.6097243686.

The spelling of 7145533 in words is "seven million, one hundred forty-five thousand, five hundred thirty-three".