134422391 has 2 divisors, whose sum is σ = 134422392. Its totient is φ = 134422390.

The previous prime is 134422361. The next prime is 134422399. The reversal of 134422391 is 193224431.

134422391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134422391 - 2¹⁴ = 134406007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134422399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67211195 + 67211196.

It is an arithmetic number, because the mean of its divisors is an integer number (67211196).

Almost surely, 2^134422391 is an apocalyptic number.

134422391 is a deficient number, since it is larger than the sum of its proper divisors (1).

134422391 is an equidigital number, since it uses as much as digits as its factorization.

134422391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 134422391 is about 11594.0670603546. The cubic root of 134422391 is about 512.2601102965.

The spelling of 134422391 in words is "one hundred thirty-four million, four hundred twenty-two thousand, three hundred ninety-one".