115251321541 has 4 divisors (see below), whose sum is σ = 116546280300. Its totient is φ = 113956362784.

The previous prime is 115251321527. The next prime is 115251321623. The reversal of 115251321541 is 145123152511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10915861441 + 104335460100 = 104479^2 + 323010^2 .

It is a cyclic number.

It is not a de Polignac number, because 115251321541 - 2⁵ = 115251321509 is a prime.

It is a super-2 number, since 2×115251321541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115251321641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647479246 + ... + 647479423.

It is an arithmetic number, because the mean of its divisors is an integer number (29136570075).

Almost surely, 2^115251321541 is an apocalyptic number.

It is an amenable number.

115251321541 is a deficient number, since it is larger than the sum of its proper divisors (1294958759).

115251321541 is an equidigital number, since it uses as much as digits as its factorization.

115251321541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294958758.

The product of its digits is 6000, while the sum is 31.

The spelling of 115251321541 in words is "one hundred fifteen billion, two hundred fifty-one million, three hundred twenty-one thousand, five hundred forty-one".