133508057 has 2 divisors, whose sum is σ = 133508058. Its totient is φ = 133508056.

The previous prime is 133508047. The next prime is 133508101. The reversal of 133508057 is 750805331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103652761 + 29855296 = 10181^2 + 5464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133508057 is a prime.

It is not a weakly prime, because it can be changed into another prime (133508017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66754028 + 66754029.

It is an arithmetic number, because the mean of its divisors is an integer number (66754029).

Almost surely, 2^133508057 is an apocalyptic number.

It is an amenable number.

133508057 is a deficient number, since it is larger than the sum of its proper divisors (1).

133508057 is an equidigital number, since it uses as much as digits as its factorization.

133508057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 133508057 is about 11554.5686635201. The cubic root of 133508057 is about 511.0960115139.

The spelling of 133508057 in words is "one hundred thirty-three million, five hundred eight thousand, fifty-seven".