115144505 has 8 divisors (see below), whose sum is σ = 157912512. Its totient is φ = 78956208.

The previous prime is 115144483. The next prime is 115144507. The reversal of 115144505 is 505441511.

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 115144505 - 2¹⁰ = 115143481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115144507) 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, 1644887 + ... + 1644956.

It is an arithmetic number, because the mean of its divisors is an integer number (19739064).

Almost surely, 2^115144505 is an apocalyptic number.

It is an amenable number.

115144505 is a deficient number, since it is larger than the sum of its proper divisors (42768007).

115144505 is an equidigital number, since it uses as much as digits as its factorization.

115144505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289855.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 115144505 is about 10730.5407599058. The cubic root of 115144505 is about 486.4980147353.

The spelling of 115144505 in words is "one hundred fifteen million, one hundred forty-four thousand, five hundred five".