133534157 has 2 divisors, whose sum is σ = 133534158. Its totient is φ = 133534156.

The previous prime is 133534153. The next prime is 133534213. The reversal of 133534157 is 751435331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 12292036 = 11011^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 133534157 - 2² = 133534153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133534151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66767078 + 66767079.

It is an arithmetic number, because the mean of its divisors is an integer number (66767079).

Almost surely, 2^133534157 is an apocalyptic number.

It is an amenable number.

133534157 is a deficient number, since it is larger than the sum of its proper divisors (1).

133534157 is an equidigital number, since it uses as much as digits as its factorization.

133534157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 32.

The square root of 133534157 is about 11555.6980317071. The cubic root of 133534157 is about 511.1293147143.

Adding to 133534157 its reverse (751435331), we get a palindrome (884969488).

The spelling of 133534157 in words is "one hundred thirty-three million, five hundred thirty-four thousand, one hundred fifty-seven".