133242959 has 2 divisors, whose sum is σ = 133242960. Its totient is φ = 133242958.

The previous prime is 133242947. The next prime is 133242961. The reversal of 133242959 is 959242331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133242959 - 2⁴ = 133242943 is a prime.

It is a super-2 number, since 2×133242959² = 35507372246151362, which contains 22 as substring.

Together with 133242961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133242919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66621479 + 66621480.

It is an arithmetic number, because the mean of its divisors is an integer number (66621480).

Almost surely, 2^133242959 is an apocalyptic number.

133242959 is a deficient number, since it is larger than the sum of its proper divisors (1).

133242959 is an equidigital number, since it uses as much as digits as its factorization.

133242959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 133242959 is about 11543.0913970219. The cubic root of 133242959 is about 510.7575043339.

The spelling of 133242959 in words is "one hundred thirty-three million, two hundred forty-two thousand, nine hundred fifty-nine".