115431140549 has 8 divisors (see below), whose sum is σ = 119162738688. Its totient is φ = 111700043280.

The previous prime is 115431140521. The next prime is 115431140567. The reversal of 115431140549 is 945041134511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115431140549 - 2³⁶ = 46711663813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115431140579) 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 7 ways as a sum of consecutive naturals, for example, 374924 + ... + 609450.

It is an arithmetic number, because the mean of its divisors is an integer number (14895342336).

Almost surely, 2^115431140549 is an apocalyptic number.

It is an amenable number.

115431140549 is a deficient number, since it is larger than the sum of its proper divisors (3731598139).

115431140549 is a wasteful number, since it uses less digits than its factorization.

115431140549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250435.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 115431140549 in words is "one hundred fifteen billion, four hundred thirty-one million, one hundred forty thousand, five hundred forty-nine".