134215111 has 2 divisors, whose sum is σ = 134215112. Its totient is φ = 134215110.

The previous prime is 134215057. The next prime is 134215121. The reversal of 134215111 is 111512431.

It is a strong prime.

It is an emirp because it is prime and its reverse (111512431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134215111 - 2¹¹ = 134213063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134215121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67107555 + 67107556.

It is an arithmetic number, because the mean of its divisors is an integer number (67107556).

Almost surely, 2^134215111 is an apocalyptic number.

134215111 is a deficient number, since it is larger than the sum of its proper divisors (1).

134215111 is an equidigital number, since it uses as much as digits as its factorization.

134215111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 19.

The square root of 134215111 is about 11585.1245569480. The cubic root of 134215111 is about 511.9966722908.

Adding to 134215111 its reverse (111512431), we get a palindrome (245727542).

It can be divided in two parts, 13 and 4215111, that added together give a palindrome (4215124).

The spelling of 134215111 in words is "one hundred thirty-four million, two hundred fifteen thousand, one hundred eleven".