115023405 has 16 divisors (see below), whose sum is σ = 210328704. Its totient is φ = 52582080.

The previous prime is 115023401. The next prime is 115023413. The reversal of 115023405 is 504320511.

It is not a de Polignac number, because 115023405 - 2² = 115023401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115023401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547626 + ... + 547835.

It is an arithmetic number, because the mean of its divisors is an integer number (13145544).

Almost surely, 2^115023405 is an apocalyptic number.

115023405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115023405 is a deficient number, since it is larger than the sum of its proper divisors (95305299).

115023405 is a wasteful number, since it uses less digits than its factorization.

115023405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095476.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 115023405 is about 10724.8965029971. The cubic root of 115023405 is about 486.3274013665.

Adding to 115023405 its reverse (504320511), we get a palindrome (619343916).

The spelling of 115023405 in words is "one hundred fifteen million, twenty-three thousand, four hundred five".