133254487 has 2 divisors, whose sum is σ = 133254488. Its totient is φ = 133254486.

The previous prime is 133254403. The next prime is 133254493. The reversal of 133254487 is 784452331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133254487 - 2²³ = 124865879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133254787) 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, 66627243 + 66627244.

It is an arithmetic number, because the mean of its divisors is an integer number (66627244).

Almost surely, 2^133254487 is an apocalyptic number.

133254487 is a deficient number, since it is larger than the sum of its proper divisors (1).

133254487 is an equidigital number, since it uses as much as digits as its factorization.

133254487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 133254487 is about 11543.5907325234. The cubic root of 133254487 is about 510.7722339245.

The spelling of 133254487 in words is "one hundred thirty-three million, two hundred fifty-four thousand, four hundred eighty-seven".