133223022157 has 2 divisors, whose sum is σ = 133223022158. Its totient is φ = 133223022156.

The previous prime is 133223022113. The next prime is 133223022169. The reversal of 133223022157 is 751220322331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133209670441 + 13351716 = 364979^2 + 3654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133223022157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133223022197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66611511078 + 66611511079.

It is an arithmetic number, because the mean of its divisors is an integer number (66611511079).

Almost surely, 2^133223022157 is an apocalyptic number.

It is an amenable number.

133223022157 is a deficient number, since it is larger than the sum of its proper divisors (1).

133223022157 is an equidigital number, since it uses as much as digits as its factorization.

133223022157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 133223022157 its reverse (751220322331), we get a palindrome (884443344488).

The spelling of 133223022157 in words is "one hundred thirty-three billion, two hundred twenty-three million, twenty-two thousand, one hundred fifty-seven".