133823419 has 2 divisors, whose sum is σ = 133823420. Its totient is φ = 133823418.

The previous prime is 133823401. The next prime is 133823461. The reversal of 133823419 is 914328331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133823419 - 2¹⁵ = 133790651 is a prime.

It is a super-2 number, since 2×133823419² = 35817414945699122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133823219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66911709 + 66911710.

It is an arithmetic number, because the mean of its divisors is an integer number (66911710).

Almost surely, 2^133823419 is an apocalyptic number.

133823419 is a deficient number, since it is larger than the sum of its proper divisors (1).

133823419 is an equidigital number, since it uses as much as digits as its factorization.

133823419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 133823419 is about 11568.2072509097. The cubic root of 133823419 is about 511.4981183762.

The spelling of 133823419 in words is "one hundred thirty-three million, eight hundred twenty-three thousand, four hundred nineteen".