133210837 has 2 divisors, whose sum is σ = 133210838. Its totient is φ = 133210836.

The previous prime is 133210823. The next prime is 133210853. The reversal of 133210837 is 738012331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126023076 + 7187761 = 11226^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 133210837 - 2¹⁹ = 132686549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133210817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66605418 + 66605419.

It is an arithmetic number, because the mean of its divisors is an integer number (66605419).

Almost surely, 2^133210837 is an apocalyptic number.

It is an amenable number.

133210837 is a deficient number, since it is larger than the sum of its proper divisors (1).

133210837 is an equidigital number, since it uses as much as digits as its factorization.

133210837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 133210837 is about 11541.6999181230. The cubic root of 133210837 is about 510.7164568337.

The spelling of 133210837 in words is "one hundred thirty-three million, two hundred ten thousand, eight hundred thirty-seven".