133115149 has 2 divisors, whose sum is σ = 133115150. Its totient is φ = 133115148.

The previous prime is 133115141. The next prime is 133115179. The reversal of 133115149 is 941511331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104919049 + 28196100 = 10243^2 + 5310^2 .

It is a cyclic number.

It is not a de Polignac number, because 133115149 - 2³ = 133115141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133115141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66557574 + 66557575.

It is an arithmetic number, because the mean of its divisors is an integer number (66557575).

Almost surely, 2^133115149 is an apocalyptic number.

It is an amenable number.

133115149 is a deficient number, since it is larger than the sum of its proper divisors (1).

133115149 is an equidigital number, since it uses as much as digits as its factorization.

133115149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 133115149 is about 11537.5538568624. The cubic root of 133115149 is about 510.5941416042.

The spelling of 133115149 in words is "one hundred thirty-three million, one hundred fifteen thousand, one hundred forty-nine".