134563811 has 2 divisors, whose sum is σ = 134563812. Its totient is φ = 134563810.

The previous prime is 134563769. The next prime is 134563831. The reversal of 134563811 is 118365431.

It is a strong prime.

It is an emirp because it is prime and its reverse (118365431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134563811 is a prime.

It is a Chen prime.

It is equal to p_7622096 and since 134563811 and 7622096 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (134563831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67281905 + 67281906.

It is an arithmetic number, because the mean of its divisors is an integer number (67281906).

Almost surely, 2^134563811 is an apocalyptic number.

134563811 is a deficient number, since it is larger than the sum of its proper divisors (1).

134563811 is an equidigital number, since it uses as much as digits as its factorization.

134563811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 134563811 is about 11600.1642660783. The cubic root of 134563811 is about 512.4396895915.

It can be divided in two parts, 1345 and 63811, that added together give a palindrome (65156).

The spelling of 134563811 in words is "one hundred thirty-four million, five hundred sixty-three thousand, eight hundred eleven".