133522761667541 has 2 divisors, whose sum is σ = 133522761667542. Its totient is φ = 133522761667540.

The previous prime is 133522761667481. The next prime is 133522761667577. The reversal of 133522761667541 is 145766167225331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132798312154225 + 724449513316 = 11523815^2 + 851146^2 .

It is a cyclic number.

It is not a de Polignac number, because 133522761667541 - 2¹⁰ = 133522761666517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133522761669541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66761380833770 + 66761380833771.

It is an arithmetic number, because the mean of its divisors is an integer number (66761380833771).

Almost surely, 2^{133522761667541} is an apocalyptic number.

It is an amenable number.

133522761667541 is a deficient number, since it is larger than the sum of its proper divisors (1).

133522761667541 is an equidigital number, since it uses as much as digits as its factorization.

133522761667541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38102400, while the sum is 59.

The spelling of 133522761667541 in words is "one hundred thirty-three trillion, five hundred twenty-two billion, seven hundred sixty-one million, six hundred sixty-seven thousand, five hundred forty-one".