34531391 has 2 divisors, whose sum is σ = 34531392. Its totient is φ = 34531390.

The previous prime is 34531363. The next prime is 34531421. The reversal of 34531391 is 19313543.

It is a weak prime.

It is an emirp because it is prime and its reverse (19313543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34531391 - 2¹⁴ = 34515007 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34531351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17265695 + 17265696.

It is an arithmetic number, because the mean of its divisors is an integer number (17265696).

Almost surely, 2^34531391 is an apocalyptic number.

34531391 is a deficient number, since it is larger than the sum of its proper divisors (1).

34531391 is an equidigital number, since it uses as much as digits as its factorization.

34531391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 29.

The square root of 34531391 is about 5876.3416340441. The cubic root of 34531391 is about 325.6402086538.

The spelling of 34531391 in words is "thirty-four million, five hundred thirty-one thousand, three hundred ninety-one".