115671405 has 16 divisors (see below), whose sum is σ = 187418880. Its totient is φ = 60909888.

The previous prime is 115671397. The next prime is 115671407. The reversal of 115671405 is 504176511.

It is not a de Polignac number, because 115671405 - 2³ = 115671397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115671407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47622 + ... + 49991.

It is an arithmetic number, because the mean of its divisors is an integer number (11713680).

Almost surely, 2^115671405 is an apocalyptic number.

115671405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115671405 is a deficient number, since it is larger than the sum of its proper divisors (71747475).

115671405 is an equidigital number, since it uses as much as digits as its factorization.

115671405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97700.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 115671405 is about 10755.0641560151. The cubic root of 115671405 is about 487.2389555740.

The spelling of 115671405 in words is "one hundred fifteen million, six hundred seventy-one thousand, four hundred five".