115951603 has 4 divisors (see below), whose sum is σ = 117254520. Its totient is φ = 114648688.

The previous prime is 115951601. The next prime is 115951613. The reversal of 115951603 is 306159511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115951603 - 2¹ = 115951601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115951601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651325 + ... + 651502.

It is an arithmetic number, because the mean of its divisors is an integer number (29313630).

Almost surely, 2^115951603 is an apocalyptic number.

115951603 is a deficient number, since it is larger than the sum of its proper divisors (1302917).

115951603 is an equidigital number, since it uses as much as digits as its factorization.

115951603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302916.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 115951603 is about 10768.0826055524. The cubic root of 115951603 is about 487.6320613511.

The spelling of 115951603 in words is "one hundred fifteen million, nine hundred fifty-one thousand, six hundred three".