115303513 has 8 divisors (see below), whose sum is σ = 124390728. Its totient is φ = 106247424.

The previous prime is 115303493. The next prime is 115303541. The reversal of 115303513 is 315303511.

It can be written as a sum of positive squares in 4 ways, for example, as 1817104 + 113486409 = 1348^2 + 10653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115303513 is a prime.

It is a super-2 number, since 2×115303513² = 26589800220282338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115303543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (15548841).

Almost surely, 2^115303513 is an apocalyptic number.

115303513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115303513 is a deficient number, since it is larger than the sum of its proper divisors (9087215).

115303513 is a wasteful number, since it uses less digits than its factorization.

115303513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15563.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 115303513 is about 10737.9473364326. The cubic root of 115303513 is about 486.7218537425.

The spelling of 115303513 in words is "one hundred fifteen million, three hundred three thousand, five hundred thirteen".