133898419 has 2 divisors, whose sum is σ = 133898420. Its totient is φ = 133898418.

The previous prime is 133898411. The next prime is 133898459. The reversal of 133898419 is 914898331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (914898331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133898419 - 2³ = 133898411 is a prime.

It is a super-2 number, since 2×133898419² = 35857573221399122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133898411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66949209 + 66949210.

It is an arithmetic number, because the mean of its divisors is an integer number (66949210).

Almost surely, 2^133898419 is an apocalyptic number.

133898419 is a deficient number, since it is larger than the sum of its proper divisors (1).

133898419 is an equidigital number, since it uses as much as digits as its factorization.

133898419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 133898419 is about 11571.4484400182. The cubic root of 133898419 is about 511.5936552032.

The spelling of 133898419 in words is "one hundred thirty-three million, eight hundred ninety-eight thousand, four hundred nineteen".