6155899 has 2 divisors, whose sum is σ = 6155900. Its totient is φ = 6155898.

The previous prime is 6155873. The next prime is 6155939. The reversal of 6155899 is 9985516.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6155899 is a prime.

6155899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6155839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077949 + 3077950.

It is an arithmetic number, because the mean of its divisors is an integer number (3077950).

Almost surely, 2^6155899 is an apocalyptic number.

6155899 is a deficient number, since it is larger than the sum of its proper divisors (1).

6155899 is an equidigital number, since it uses as much as digits as its factorization.

6155899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 43.

The square root of 6155899 is about 2481.1084216535. The cubic root of 6155899 is about 183.2724400156.

The spelling of 6155899 in words is "six million, one hundred fifty-five thousand, eight hundred ninety-nine".