133333023157 has 2 divisors, whose sum is σ = 133333023158. Its totient is φ = 133333023156.

The previous prime is 133333023077. The next prime is 133333023163. The reversal of 133333023157 is 751320333331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79078501681 + 54254521476 = 281209^2 + 232926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133333023157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133333023167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666511578 + 66666511579.

It is an arithmetic number, because the mean of its divisors is an integer number (66666511579).

Almost surely, 2^133333023157 is an apocalyptic number.

It is an amenable number.

133333023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333023157 is an equidigital number, since it uses as much as digits as its factorization.

133333023157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 34.

Adding to 133333023157 its reverse (751320333331), we get a palindrome (884653356488).

The spelling of 133333023157 in words is "one hundred thirty-three billion, three hundred thirty-three million, twenty-three thousand, one hundred fifty-seven".