115502405 has 4 divisors (see below), whose sum is σ = 138602892. Its totient is φ = 92401920.

The previous prime is 115502393. The next prime is 115502407. The reversal of 115502405 is 504205511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504205511 = 1181 ⋅426931.

It can be written as a sum of positive squares in 2 ways, for example, as 24910081 + 90592324 = 4991^2 + 9518^2 .

It is not a de Polignac number, because 115502405 - 2¹² = 115498309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115502407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11550236 + ... + 11550245.

It is an arithmetic number, because the mean of its divisors is an integer number (34650723).

Almost surely, 2^115502405 is an apocalyptic number.

It is an amenable number.

115502405 is a deficient number, since it is larger than the sum of its proper divisors (23100487).

115502405 is an equidigital number, since it uses as much as digits as its factorization.

115502405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100486.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 115502405 is about 10747.2045202462. The cubic root of 115502405 is about 487.0015488203.

Adding to 115502405 its reverse (504205511), we get a palindrome (619707916).

The spelling of 115502405 in words is "one hundred fifteen million, five hundred two thousand, four hundred five".