134855881 has 2 divisors, whose sum is σ = 134855882. Its totient is φ = 134855880.

The previous prime is 134855843. The next prime is 134855891. The reversal of 134855881 is 188558431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96353856 + 38502025 = 9816^2 + 6205^2 .

It is an emirp because it is prime and its reverse (188558431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134855881 - 2¹¹ = 134853833 is a prime.

It is a super-2 number, since 2×134855881² = 36372217280572322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134855821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67427940 + 67427941.

It is an arithmetic number, because the mean of its divisors is an integer number (67427941).

Almost surely, 2^134855881 is an apocalyptic number.

It is an amenable number.

134855881 is a deficient number, since it is larger than the sum of its proper divisors (1).

134855881 is an equidigital number, since it uses as much as digits as its factorization.

134855881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153600, while the sum is 43.

The square root of 134855881 is about 11612.7464882344. The cubic root of 134855881 is about 512.8101708393.

The spelling of 134855881 in words is "one hundred thirty-four million, eight hundred fifty-five thousand, eight hundred eighty-one".