2543316157 has 2 divisors, whose sum is σ = 2543316158. Its totient is φ = 2543316156.

The previous prime is 2543316143. The next prime is 2543316163. The reversal of 2543316157 is 7516133452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493104761 + 50211396 = 49931^2 + 7086^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543316157 - 2²⁷ = 2409098429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543316187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271658078 + 1271658079.

It is an arithmetic number, because the mean of its divisors is an integer number (1271658079).

Almost surely, 2^2543316157 is an apocalyptic number.

It is an amenable number.

2543316157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543316157 is an equidigital number, since it uses as much as digits as its factorization.

2543316157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 2543316157 is about 50431.3013613569. The cubic root of 2543316157 is about 1365.0025103381.

The spelling of 2543316157 in words is "two billion, five hundred forty-three million, three hundred sixteen thousand, one hundred fifty-seven".