133963 has 2 divisors, whose sum is σ = 133964. Its totient is φ = 133962.

The previous prime is 133949. The next prime is 133967. The reversal of 133963 is 369331.

It is a strong prime.

It is an emirp because it is prime and its reverse (369331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133963 - 2⁹ = 133451 is a prime.

133963 is a lucky number.

It is a plaindrome in base 9.

It is not a weakly prime, because it can be changed into another prime (133967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66981 + 66982.

It is an arithmetic number, because the mean of its divisors is an integer number (66982).

2¹³³⁹⁶³ is an apocalyptic number.

133963 is a deficient number, since it is larger than the sum of its proper divisors (1).

133963 is an equidigital number, since it uses as much as digits as its factorization.

133963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 25.

The square root of 133963 is about 366.0095627166. The cubic root of 133963 is about 51.1675891473.

The spelling of 133963 in words is "one hundred thirty-three thousand, nine hundred sixty-three".