115814947 has 4 divisors (see below), whose sum is σ = 115836480. Its totient is φ = 115793416.

The previous prime is 115814929. The next prime is 115814957. The reversal of 115814947 is 749418511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 749418511 = 73 ⋅10266007.

It is a cyclic number.

It is not a de Polignac number, because 115814947 - 2¹¹ = 115812899 is a prime.

It is a super-2 number, since 2×115814947² = 26826203897225618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115814917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4929 + ... + 15997.

It is an arithmetic number, because the mean of its divisors is an integer number (28959120).

Almost surely, 2^115814947 is an apocalyptic number.

115814947 is a deficient number, since it is larger than the sum of its proper divisors (21533).

115814947 is a wasteful number, since it uses less digits than its factorization.

115814947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21532.

The product of its digits is 40320, while the sum is 40.

The square root of 115814947 is about 10761.7353154591. The cubic root of 115814947 is about 487.4404180524.

The spelling of 115814947 in words is "one hundred fifteen million, eight hundred fourteen thousand, nine hundred forty-seven".