133254493 has 2 divisors, whose sum is σ = 133254494. Its totient is φ = 133254492.

The previous prime is 133254487. The next prime is 133254529. The reversal of 133254493 is 394452331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112296409 + 20958084 = 10597^2 + 4578^2 .

It is a cyclic number.

It is not a de Polignac number, because 133254493 - 2¹⁷ = 133123421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133254403) 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, 66627246 + 66627247.

It is an arithmetic number, because the mean of its divisors is an integer number (66627247).

Almost surely, 2^133254493 is an apocalyptic number.

It is an amenable number.

133254493 is a deficient number, since it is larger than the sum of its proper divisors (1).

133254493 is an equidigital number, since it uses as much as digits as its factorization.

133254493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 133254493 is about 11543.5909924079. The cubic root of 133254493 is about 510.7722415906.

The spelling of 133254493 in words is "one hundred thirty-three million, two hundred fifty-four thousand, four hundred ninety-three".