115130505 has 16 divisors (see below), whose sum is σ = 210524544. Its totient is φ = 52631040.

The previous prime is 115130471. The next prime is 115130507. The reversal of 115130505 is 505031511.

It is not a de Polignac number, because 115130505 - 2⁶ = 115130441 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (115130507) 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, 548136 + ... + 548345.

It is an arithmetic number, because the mean of its divisors is an integer number (13157784).

Almost surely, 2^115130505 is an apocalyptic number.

115130505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115130505 is a deficient number, since it is larger than the sum of its proper divisors (95394039).

115130505 is a wasteful number, since it uses less digits than its factorization.

115130505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096496.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 115130505 is about 10729.8883964373. Note that the first 3 decimals coincide. The cubic root of 115130505 is about 486.4782967636.

The spelling of 115130505 in words is "one hundred fifteen million, one hundred thirty thousand, five hundred five".