1598111 has 2 divisors, whose sum is σ = 1598112. Its totient is φ = 1598110.

The previous prime is 1598099. The next prime is 1598131. The reversal of 1598111 is 1118951.

It is a weak prime.

It is an emirp because it is prime and its reverse (1118951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1598111 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 (1598131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799055 + 799056.

It is an arithmetic number, because the mean of its divisors is an integer number (799056).

2^1598111 is an apocalyptic number.

1598111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1598111 is an equidigital number, since it uses as much as digits as its factorization.

1598111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 26.

The square root of 1598111 is about 1264.1641507336. The cubic root of 1598111 is about 116.9146624898.

The spelling of 1598111 in words is "one million, five hundred ninety-eight thousand, one hundred eleven".