115442687 has 4 divisors (see below), whose sum is σ = 115730976. Its totient is φ = 115154400.

The previous prime is 115442653. The next prime is 115442693. The reversal of 115442687 is 786244511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786244511 = 13 ⋅60480347.

It is a cyclic number.

It is not a de Polignac number, because 115442687 - 2⁶ = 115442623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115442687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115442617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143543 + ... + 144344.

It is an arithmetic number, because the mean of its divisors is an integer number (28932744).

Almost surely, 2^115442687 is an apocalyptic number.

115442687 is a deficient number, since it is larger than the sum of its proper divisors (288289).

115442687 is an equidigital number, since it uses as much as digits as its factorization.

115442687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288288.

The product of its digits is 53760, while the sum is 38.

The square root of 115442687 is about 10744.4258571596. The cubic root of 115442687 is about 486.9176031739.

The spelling of 115442687 in words is "one hundred fifteen million, four hundred forty-two thousand, six hundred eighty-seven".