133566053 has 2 divisors, whose sum is σ = 133566054. Its totient is φ = 133566052.

The previous prime is 133566047. The next prime is 133566061. The reversal of 133566053 is 350665331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127622209 + 5943844 = 11297^2 + 2438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133566053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133566253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66783026 + 66783027.

It is an arithmetic number, because the mean of its divisors is an integer number (66783027).

Almost surely, 2^133566053 is an apocalyptic number.

It is an amenable number.

133566053 is a deficient number, since it is larger than the sum of its proper divisors (1).

133566053 is an equidigital number, since it uses as much as digits as its factorization.

133566053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 133566053 is about 11557.0780476728. The cubic root of 133566053 is about 511.1700076304.

The spelling of 133566053 in words is "one hundred thirty-three million, five hundred sixty-six thousand, fifty-three".