133061273 has 2 divisors, whose sum is σ = 133061274. Its totient is φ = 133061272.

The previous prime is 133061267. The next prime is 133061281. The reversal of 133061273 is 372160331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129231424 + 3829849 = 11368^2 + 1957^2 .

It is an emirp because it is prime and its reverse (372160331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133061273 - 2⁸ = 133061017 is a prime.

It is not a weakly prime, because it can be changed into another prime (133064273) 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, 66530636 + 66530637.

It is an arithmetic number, because the mean of its divisors is an integer number (66530637).

Almost surely, 2^133061273 is an apocalyptic number.

It is an amenable number.

133061273 is a deficient number, since it is larger than the sum of its proper divisors (1).

133061273 is an equidigital number, since it uses as much as digits as its factorization.

133061273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 133061273 is about 11535.2188102350. The cubic root of 133061273 is about 510.5252476623.

The spelling of 133061273 in words is "one hundred thirty-three million, sixty-one thousand, two hundred seventy-three".