6243157 has 2 divisors, whose sum is σ = 6243158. Its totient is φ = 6243156.

The previous prime is 6243109. The next prime is 6243161. The reversal of 6243157 is 7513426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3236401 + 3006756 = 1799^2 + 1734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6243157 is a prime.

6243157 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6243187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121578 + 3121579.

It is an arithmetic number, because the mean of its divisors is an integer number (3121579).

Almost surely, 2^6243157 is an apocalyptic number.

It is an amenable number.

6243157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6243157 is an equidigital number, since it uses as much as digits as its factorization.

6243157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 6243157 is about 2498.6310251816. The cubic root of 6243157 is about 184.1343241754.

It can be divided in two parts, 6243 and 157, that added together give a square (6400 = 80²).

The spelling of 6243157 in words is "six million, two hundred forty-three thousand, one hundred fifty-seven".