133055137 has 2 divisors, whose sum is σ = 133055138. Its totient is φ = 133055136.

The previous prime is 133055113. The next prime is 133055149. The reversal of 133055137 is 731550331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115111441 + 17943696 = 10729^2 + 4236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133055137 is a prime.

It is not a weakly prime, because it can be changed into another prime (133055177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66527568 + 66527569.

It is an arithmetic number, because the mean of its divisors is an integer number (66527569).

Almost surely, 2^133055137 is an apocalyptic number.

It is an amenable number.

133055137 is a deficient number, since it is larger than the sum of its proper divisors (1).

133055137 is an equidigital number, since it uses as much as digits as its factorization.

133055137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 133055137 is about 11534.9528390887. The cubic root of 133055137 is about 510.5174000720.

The spelling of 133055137 in words is "one hundred thirty-three million, fifty-five thousand, one hundred thirty-seven".