115020581 has 8 divisors (see below), whose sum is σ = 123992064. Its totient is φ = 106066800.

The previous prime is 115020569. The next prime is 115020593. The reversal of 115020581 is 185020511.

It is an interprime number because it is at equal distance from previous prime (115020569) and next prime (115020593).

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 115020581 - 2¹⁰ = 115019557 is a prime.

It is a super-2 number, since 2×115020581² = 26459468107155122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115020511) 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, 11120 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (15499008).

Almost surely, 2^115020581 is an apocalyptic number.

It is an amenable number.

115020581 is a deficient number, since it is larger than the sum of its proper divisors (8971483).

115020581 is a wasteful number, since it uses less digits than its factorization.

115020581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 115020581 is about 10724.7648459069. The cubic root of 115020581 is about 486.3234213075.

The spelling of 115020581 in words is "one hundred fifteen million, twenty thousand, five hundred eighty-one".