149563 has 2 divisors, whose sum is σ = 149564. Its totient is φ = 149562.

The previous prime is 149561. The next prime is 149579. The reversal of 149563 is 365941.

It is a weak prime.

It is an emirp because it is prime and its reverse (365941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149563 - 2¹ = 149561 is a prime.

Together with 149561, it forms a pair of twin primes.

149563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (149561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74781 + 74782.

It is an arithmetic number, because the mean of its divisors is an integer number (74782).

2¹⁴⁹⁵⁶³ is an apocalyptic number.

149563 is a deficient number, since it is larger than the sum of its proper divisors (1).

149563 is an equidigital number, since it uses as much as digits as its factorization.

149563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 149563 is about 386.7337585471. The cubic root of 149563 is about 53.0812802933.

The spelling of 149563 in words is "one hundred forty-nine thousand, five hundred sixty-three".