2541728117 has 2 divisors, whose sum is σ = 2541728118. Its totient is φ = 2541728116.

The previous prime is 2541728071. The next prime is 2541728131. The reversal of 2541728117 is 7118271452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1975002481 + 566725636 = 44441^2 + 23806^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541728117 - 2¹⁰ = 2541727093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541728017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270864058 + 1270864059.

It is an arithmetic number, because the mean of its divisors is an integer number (1270864059).

Almost surely, 2^2541728117 is an apocalyptic number.

It is an amenable number.

2541728117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541728117 is an equidigital number, since it uses as much as digits as its factorization.

2541728117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 38.

The square root of 2541728117 is about 50415.5543161037. The cubic root of 2541728117 is about 1364.7183498466.

Adding to 2541728117 its reverse (7118271452), we get a palindrome (9659999569).

The spelling of 2541728117 in words is "two billion, five hundred forty-one million, seven hundred twenty-eight thousand, one hundred seventeen".