133146001 has 2 divisors, whose sum is σ = 133146002. Its totient is φ = 133146000.

The previous prime is 133145963. The next prime is 133146019. The reversal of 133146001 is 100641331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125417601 + 7728400 = 11199^2 + 2780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133146001 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133146001.

It is not a weakly prime, because it can be changed into another prime (133146031) 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, 66573000 + 66573001.

It is an arithmetic number, because the mean of its divisors is an integer number (66573001).

Almost surely, 2^133146001 is an apocalyptic number.

It is an amenable number.

133146001 is a deficient number, since it is larger than the sum of its proper divisors (1).

133146001 is an equidigital number, since it uses as much as digits as its factorization.

133146001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 133146001 is about 11538.8908045791. The cubic root of 133146001 is about 510.6335852331.

Adding to 133146001 its reverse (100641331), we get a palindrome (233787332).

The spelling of 133146001 in words is "one hundred thirty-three million, one hundred forty-six thousand, one".