133292251 has 2 divisors, whose sum is σ = 133292252. Its totient is φ = 133292250.

The previous prime is 133292221. The next prime is 133292267. The reversal of 133292251 is 152292331.

It is a strong prime.

It is an emirp because it is prime and its reverse (152292331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133292251 - 2¹¹ = 133290203 is a prime.

It is not a weakly prime, because it can be changed into another prime (133292221) 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, 66646125 + 66646126.

It is an arithmetic number, because the mean of its divisors is an integer number (66646126).

Almost surely, 2^133292251 is an apocalyptic number.

133292251 is a deficient number, since it is larger than the sum of its proper divisors (1).

133292251 is an equidigital number, since it uses as much as digits as its factorization.

133292251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 133292251 is about 11545.2263295268. The cubic root of 133292251 is about 510.8204799066.

The spelling of 133292251 in words is "one hundred thirty-three million, two hundred ninety-two thousand, two hundred fifty-one".