115243719 has 8 divisors (see below), whose sum is σ = 153726720. Its totient is φ = 76794936.

The previous prime is 115243717. The next prime is 115243729. The reversal of 115243719 is 917342511.

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

It is not a de Polignac number, because 115243719 - 2¹ = 115243717 is a prime.

It is a super-2 number, since 2×115243719² = 26562229537901922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115243719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754 + ... + 15200.

It is an arithmetic number, because the mean of its divisors is an integer number (19215840).

Almost surely, 2^115243719 is an apocalyptic number.

115243719 is a deficient number, since it is larger than the sum of its proper divisors (38483001).

115243719 is a wasteful number, since it uses less digits than its factorization.

115243719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17109.

The product of its digits is 7560, while the sum is 33.

The square root of 115243719 is about 10735.1627374717. The cubic root of 115243719 is about 486.6377045899.

The spelling of 115243719 in words is "one hundred fifteen million, two hundred forty-three thousand, seven hundred nineteen".