133534501 has 2 divisors, whose sum is σ = 133534502. Its totient is φ = 133534500.

The previous prime is 133534477. The next prime is 133534529. The reversal of 133534501 is 105435331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133425601 + 108900 = 11551^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 133534501 - 2⁵ = 133534469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133534561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66767250 + 66767251.

It is an arithmetic number, because the mean of its divisors is an integer number (66767251).

Almost surely, 2^133534501 is an apocalyptic number.

It is an amenable number.

133534501 is a deficient number, since it is larger than the sum of its proper divisors (1).

133534501 is an equidigital number, since it uses as much as digits as its factorization.

133534501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 133534501 is about 11555.7129161294. The cubic root of 133534501 is about 511.1297536241.

Adding to 133534501 its reverse (105435331), we get a palindrome (238969832).

The spelling of 133534501 in words is "one hundred thirty-three million, five hundred thirty-four thousand, five hundred one".