149533 has 2 divisors, whose sum is σ = 149534. Its totient is φ = 149532.

The previous prime is 149531. The next prime is 149543. The reversal of 149533 is 335941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139129 + 10404 = 373^2 + 102^2 .

It is an emirp because it is prime and its reverse (335941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149533 - 2¹ = 149531 is a prime.

Together with 149531, it forms a pair of twin primes.

149533 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 149498 and 149507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74766 + 74767.

It is an arithmetic number, because the mean of its divisors is an integer number (74767).

2¹⁴⁹⁵³³ is an apocalyptic number.

It is an amenable number.

149533 is a deficient number, since it is larger than the sum of its proper divisors (1).

149533 is an equidigital number, since it uses as much as digits as its factorization.

149533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

The square root of 149533 is about 386.6949702285. The cubic root of 149533 is about 53.0777309643.

The spelling of 149533 in words is "one hundred forty-nine thousand, five hundred thirty-three".