115021505 has 8 divisors (see below), whose sum is σ = 144027072. Its totient is φ = 88016368.

The previous prime is 115021499. The next prime is 115021561. The reversal of 115021505 is 505120511.

It is a happy number.

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-115021505 is a prime.

It is a super-2 number, since 2×115021505² = 26459893224930050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499979 + ... + 500208.

It is an arithmetic number, because the mean of its divisors is an integer number (18003384).

Almost surely, 2^115021505 is an apocalyptic number.

It is an amenable number.

115021505 is a deficient number, since it is larger than the sum of its proper divisors (29005567).

115021505 is a wasteful number, since it uses less digits than its factorization.

115021505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000215.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 115021505 is about 10724.8079236880. The cubic root of 115021505 is about 486.3247235719.

The spelling of 115021505 in words is "one hundred fifteen million, twenty-one thousand, five hundred five".