133573175231 has 2 divisors, whose sum is σ = 133573175232. Its totient is φ = 133573175230.

The previous prime is 133573175207. The next prime is 133573175287. The reversal of 133573175231 is 132571375331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133573175231 - 2¹⁴ = 133573158847 is a prime.

It is a super-2 number, since 2×133573175231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133570175231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66786587615 + 66786587616.

It is an arithmetic number, because the mean of its divisors is an integer number (66786587616).

Almost surely, 2^133573175231 is an apocalyptic number.

133573175231 is a deficient number, since it is larger than the sum of its proper divisors (1).

133573175231 is an equidigital number, since it uses as much as digits as its factorization.

133573175231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 41.

The spelling of 133573175231 in words is "one hundred thirty-three billion, five hundred seventy-three million, one hundred seventy-five thousand, two hundred thirty-one".