4134391 has 2 divisors, whose sum is σ = 4134392. Its totient is φ = 4134390.

The previous prime is 4134341. The next prime is 4134409. The reversal of 4134391 is 1934314.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4134391 - 2¹⁵ = 4101623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4134311) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067195 + 2067196.

It is an arithmetic number, because the mean of its divisors is an integer number (2067196).

Almost surely, 2^4134391 is an apocalyptic number.

4134391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4134391 is an equidigital number, since it uses as much as digits as its factorization.

4134391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 4134391 is about 2033.3201912144. The cubic root of 4134391 is about 160.4983291267.

The spelling of 4134391 in words is "four million, one hundred thirty-four thousand, three hundred ninety-one".