133031737 has 2 divisors, whose sum is σ = 133031738. Its totient is φ = 133031736.

The previous prime is 133031713. The next prime is 133031779. The reversal of 133031737 is 737130331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125529616 + 7502121 = 11204^2 + 2739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133031737 is a prime.

It is not a weakly prime, because it can be changed into another prime (133031707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515868 + 66515869.

It is an arithmetic number, because the mean of its divisors is an integer number (66515869).

Almost surely, 2^133031737 is an apocalyptic number.

It is an amenable number.

133031737 is a deficient number, since it is larger than the sum of its proper divisors (1).

133031737 is an equidigital number, since it uses as much as digits as its factorization.

133031737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 28.

The square root of 133031737 is about 11533.9384860506. The cubic root of 133031737 is about 510.4874706061.

The spelling of 133031737 in words is "one hundred thirty-three million, thirty-one thousand, seven hundred thirty-seven".