133851061 has 2 divisors, whose sum is σ = 133851062. Its totient is φ = 133851060.

The previous prime is 133851017. The next prime is 133851071. The reversal of 133851061 is 160158331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71740900 + 62110161 = 8470^2 + 7881^2 .

It is a cyclic number.

It is not a de Polignac number, because 133851061 - 2¹⁹ = 133326773 is a prime.

It is a super-2 number, since 2×133851061² = 35832213061651442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133851071) 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, 66925530 + 66925531.

It is an arithmetic number, because the mean of its divisors is an integer number (66925531).

Almost surely, 2^133851061 is an apocalyptic number.

It is an amenable number.

133851061 is a deficient number, since it is larger than the sum of its proper divisors (1).

133851061 is an equidigital number, since it uses as much as digits as its factorization.

133851061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 133851061 is about 11569.4019292269. The cubic root of 133851061 is about 511.5333335817.

The spelling of 133851061 in words is "one hundred thirty-three million, eight hundred fifty-one thousand, sixty-one".