133517023 has 2 divisors, whose sum is σ = 133517024. Its totient is φ = 133517022.

The previous prime is 133517011. The next prime is 133517029. The reversal of 133517023 is 320715331.

It is a strong prime.

It is an emirp because it is prime and its reverse (320715331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133517023 - 2¹³ = 133508831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133517029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66758511 + 66758512.

It is an arithmetic number, because the mean of its divisors is an integer number (66758512).

Almost surely, 2^133517023 is an apocalyptic number.

133517023 is a deficient number, since it is larger than the sum of its proper divisors (1).

133517023 is an equidigital number, since it uses as much as digits as its factorization.

133517023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 133517023 is about 11554.9566420649. The cubic root of 133517023 is about 511.1074524820.

The spelling of 133517023 in words is "one hundred thirty-three million, five hundred seventeen thousand, twenty-three".