133085723 has 2 divisors, whose sum is σ = 133085724. Its totient is φ = 133085722.

The previous prime is 133085683. The next prime is 133085749. The reversal of 133085723 is 327580331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133085723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133085723.

It is not a weakly prime, because it can be changed into another prime (133088723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66542861 + 66542862.

It is an arithmetic number, because the mean of its divisors is an integer number (66542862).

Almost surely, 2^133085723 is an apocalyptic number.

133085723 is a deficient number, since it is larger than the sum of its proper divisors (1).

133085723 is an equidigital number, since it uses as much as digits as its factorization.

133085723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 133085723 is about 11536.2785593969. The cubic root of 133085723 is about 510.5565154072.

The spelling of 133085723 in words is "one hundred thirty-three million, eighty-five thousand, seven hundred twenty-three".