115947405 has 48 divisors (see below), whose sum is σ = 241787520. Its totient is φ = 50212224.

The previous prime is 115947373. The next prime is 115947413. The reversal of 115947405 is 504749511.

It is not a de Polignac number, because 115947405 - 2⁵ = 115947373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115947405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3702 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (5037240).

Almost surely, 2^115947405 is an apocalyptic number.

115947405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115947405 is an abundant number, since it is smaller than the sum of its proper divisors (125840115).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115947405 is a wasteful number, since it uses less digits than its factorization.

115947405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19410 (or 19407 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 115947405 is about 10767.8876758629. The cubic root of 115947405 is about 487.6261764128.

The spelling of 115947405 in words is "one hundred fifteen million, nine hundred forty-seven thousand, four hundred five".