133158831877 has 2 divisors, whose sum is σ = 133158831878. Its totient is φ = 133158831876.

The previous prime is 133158831847. The next prime is 133158831881. The reversal of 133158831877 is 778138851331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130755283201 + 2403548676 = 361601^2 + 49026^2 .

It is a cyclic number.

It is not a de Polignac number, because 133158831877 - 2⁷ = 133158831749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133158831847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66579415938 + 66579415939.

It is an arithmetic number, because the mean of its divisors is an integer number (66579415939).

Almost surely, 2^133158831877 is an apocalyptic number.

It is an amenable number.

133158831877 is a deficient number, since it is larger than the sum of its proper divisors (1).

133158831877 is an equidigital number, since it uses as much as digits as its factorization.

133158831877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The spelling of 133158831877 in words is "one hundred thirty-three billion, one hundred fifty-eight million, eight hundred thirty-one thousand, eight hundred seventy-seven".