133534612457 has 2 divisors, whose sum is σ = 133534612458. Its totient is φ = 133534612456.

The previous prime is 133534612391. The next prime is 133534612483. The reversal of 133534612457 is 754216435331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123517805401 + 10016807056 = 351451^2 + 100084^2 .

It is a cyclic number.

It is not a de Polignac number, because 133534612457 - 2²⁰ = 133533563881 is a prime.

It is not a weakly prime, because it can be changed into another prime (133534612487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66767306228 + 66767306229.

It is an arithmetic number, because the mean of its divisors is an integer number (66767306229).

Almost surely, 2^133534612457 is an apocalyptic number.

It is an amenable number.

133534612457 is a deficient number, since it is larger than the sum of its proper divisors (1).

133534612457 is an equidigital number, since it uses as much as digits as its factorization.

133534612457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 44.

The spelling of 133534612457 in words is "one hundred thirty-three billion, five hundred thirty-four million, six hundred twelve thousand, four hundred fifty-seven".