134557919 has 2 divisors, whose sum is σ = 134557920. Its totient is φ = 134557918.

The previous prime is 134557903. The next prime is 134557921. The reversal of 134557919 is 919755431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134557919 - 2⁴ = 134557903 is a prime.

It is a super-2 number, since 2×134557919² = 36211667131221122, which contains 22 as substring.

Together with 134557921, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134557919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134557979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67278959 + 67278960.

It is an arithmetic number, because the mean of its divisors is an integer number (67278960).

Almost surely, 2^134557919 is an apocalyptic number.

134557919 is a deficient number, since it is larger than the sum of its proper divisors (1).

134557919 is an equidigital number, since it uses as much as digits as its factorization.

134557919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 44.

The square root of 134557919 is about 11599.9103013773. The cubic root of 134557919 is about 512.4322102683.

The spelling of 134557919 in words is "one hundred thirty-four million, five hundred fifty-seven thousand, nine hundred nineteen".