133847423 has 2 divisors, whose sum is σ = 133847424. Its totient is φ = 133847422.

The previous prime is 133847401. The next prime is 133847431. The reversal of 133847423 is 324748331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133847423 - 2¹⁰ = 133846399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133847473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66923711 + 66923712.

It is an arithmetic number, because the mean of its divisors is an integer number (66923712).

Almost surely, 2^133847423 is an apocalyptic number.

133847423 is a deficient number, since it is larger than the sum of its proper divisors (1).

133847423 is an equidigital number, since it uses as much as digits as its factorization.

133847423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 133847423 is about 11569.2447030910. The cubic root of 133847423 is about 511.5286991392.

The spelling of 133847423 in words is "one hundred thirty-three million, eight hundred forty-seven thousand, four hundred twenty-three".