133158941 has 2 divisors, whose sum is σ = 133158942. Its totient is φ = 133158940.

The previous prime is 133158899. The next prime is 133158947. The reversal of 133158941 is 149851331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77968900 + 55190041 = 8830^2 + 7429^2 .

It is a cyclic number.

It is not a de Polignac number, because 133158941 - 2⁶ = 133158877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133158947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66579470 + 66579471.

It is an arithmetic number, because the mean of its divisors is an integer number (66579471).

Almost surely, 2^133158941 is an apocalyptic number.

It is an amenable number.

133158941 is a deficient number, since it is larger than the sum of its proper divisors (1).

133158941 is an equidigital number, since it uses as much as digits as its factorization.

133158941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 133158941 is about 11539.4515034294. The cubic root of 133158941 is about 510.6501269354.

The spelling of 133158941 in words is "one hundred thirty-three million, one hundred fifty-eight thousand, nine hundred forty-one".