133155138371 has 2 divisors, whose sum is σ = 133155138372. Its totient is φ = 133155138370.

The previous prime is 133155138359. The next prime is 133155138379. The reversal of 133155138371 is 173831551331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133155138371 - 2¹⁴ = 133155121987 is a prime.

It is not a weakly prime, because it can be changed into another prime (133155138379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66577569185 + 66577569186.

It is an arithmetic number, because the mean of its divisors is an integer number (66577569186).

Almost surely, 2^133155138371 is an apocalyptic number.

133155138371 is a deficient number, since it is larger than the sum of its proper divisors (1).

133155138371 is an equidigital number, since it uses as much as digits as its factorization.

133155138371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The spelling of 133155138371 in words is "one hundred thirty-three billion, one hundred fifty-five million, one hundred thirty-eight thousand, three hundred seventy-one".