133610539 has 2 divisors, whose sum is σ = 133610540. Its totient is φ = 133610538.

The previous prime is 133610471. The next prime is 133610549. The reversal of 133610539 is 935016331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133610539 is a prime.

It is a super-2 number, since 2×133610539² = 35703552263741042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133610539.

It is not a weakly prime, because it can be changed into another prime (133610549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66805269 + 66805270.

It is an arithmetic number, because the mean of its divisors is an integer number (66805270).

Almost surely, 2^133610539 is an apocalyptic number.

133610539 is a deficient number, since it is larger than the sum of its proper divisors (1).

133610539 is an equidigital number, since it uses as much as digits as its factorization.

133610539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 133610539 is about 11559.0025088673. The cubic root of 133610539 is about 511.2267520509.

The spelling of 133610539 in words is "one hundred thirty-three million, six hundred ten thousand, five hundred thirty-nine".