115188005 has 8 divisors (see below), whose sum is σ = 146356632. Its totient is φ = 86729728.

The previous prime is 115187999. The next prime is 115188011. The reversal of 115188005 is 500881511.

It is an interprime number because it is at equal distance from previous prime (115187999) and next prime (115188011).

It can be written as a sum of positive squares in 4 ways, for example, as 47306884 + 67881121 = 6878^2 + 8239^2 .

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 115188005 - 2¹⁴ = 115171621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677492 + ... + 677661.

It is an arithmetic number, because the mean of its divisors is an integer number (18294579).

Almost surely, 2^115188005 is an apocalyptic number.

It is an amenable number.

115188005 is a deficient number, since it is larger than the sum of its proper divisors (31168627).

115188005 is a wasteful number, since it uses less digits than its factorization.

115188005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355175.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 115188005 is about 10732.5674933820. The cubic root of 115188005 is about 486.5592710937.

The spelling of 115188005 in words is "one hundred fifteen million, one hundred eighty-eight thousand, five".