13641533 has 2 divisors, whose sum is σ = 13641534. Its totient is φ = 13641532.

The previous prime is 13641527. The next prime is 13641539. The reversal of 13641533 is 33514631.

13641533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (13641527) and next prime (13641539).

It can be written as a sum of positive squares in only one way, i.e., 12096484 + 1545049 = 3478^2 + 1243^2 .

It is an emirp because it is prime and its reverse (33514631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13641533 - 2⁴ = 13641517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13641539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820766 + 6820767.

It is an arithmetic number, because the mean of its divisors is an integer number (6820767).

Almost surely, 2^13641533 is an apocalyptic number.

It is an amenable number.

13641533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13641533 is an equidigital number, since it uses as much as digits as its factorization.

13641533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 13641533 is about 3693.4445982037. Note that the first 3 decimals coincide. The cubic root of 13641533 is about 238.9393764412.

The spelling of 13641533 in words is "thirteen million, six hundred forty-one thousand, five hundred thirty-three".