115035721 has 8 divisors (see below), whose sum is σ = 119133000. Its totient is φ = 110947200.

The previous prime is 115035703. The next prime is 115035727. The reversal of 115035721 is 127530511.

It can be written as a sum of positive squares in 4 ways, for example, as 4260096 + 110775625 = 2064^2 + 10525^2 .

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 115035721 - 2⁵ = 115035689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115035727) 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, 36205 + ... + 39253.

It is an arithmetic number, because the mean of its divisors is an integer number (14891625).

Almost surely, 2^115035721 is an apocalyptic number.

It is an amenable number.

115035721 is a deficient number, since it is larger than the sum of its proper divisors (4097279).

115035721 is a wasteful number, since it uses less digits than its factorization.

115035721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 115035721 is about 10725.4706656631. The cubic root of 115035721 is about 486.3447583977.

The spelling of 115035721 in words is "one hundred fifteen million, thirty-five thousand, seven hundred twenty-one".