133539953 has 2 divisors, whose sum is σ = 133539954. Its totient is φ = 133539952.

The previous prime is 133539949. The next prime is 133540003. The reversal of 133539953 is 359935331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131515024 + 2024929 = 11468^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 133539953 - 2² = 133539949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133539953.

It is not a weakly prime, because it can be changed into another prime (133539943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66769976 + 66769977.

It is an arithmetic number, because the mean of its divisors is an integer number (66769977).

Almost surely, 2^133539953 is an apocalyptic number.

It is an amenable number.

133539953 is a deficient number, since it is larger than the sum of its proper divisors (1).

133539953 is an equidigital number, since it uses as much as digits as its factorization.

133539953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164025, while the sum is 41.

The square root of 133539953 is about 11555.9488143553. The cubic root of 133539953 is about 511.1367097327.

The spelling of 133539953 in words is "one hundred thirty-three million, five hundred thirty-nine thousand, nine hundred fifty-three".