115128419 has 8 divisors (see below), whose sum is σ = 131738880. Its totient is φ = 98558856.

The previous prime is 115128413. The next prime is 115128439. The reversal of 115128419 is 914821511.

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 115128419 - 2²⁴ = 98351203 is a prime.

It is a super-2 number, since 2×115128419² = 26509105722879122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115128413) 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, 3929 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (16467360).

Almost surely, 2^115128419 is an apocalyptic number.

115128419 is a deficient number, since it is larger than the sum of its proper divisors (16610461).

115128419 is an equidigital number, since it uses as much as digits as its factorization.

115128419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20449.

The product of its digits is 2880, while the sum is 32.

The square root of 115128419 is about 10729.7911908853. The cubic root of 115128419 is about 486.4753586490.

The spelling of 115128419 in words is "one hundred fifteen million, one hundred twenty-eight thousand, four hundred nineteen".