115353021 has 8 divisors (see below), whose sum is σ = 175776064. Its totient is φ = 65916000.

The previous prime is 115353011. The next prime is 115353031. The reversal of 115353021 is 120353511.

It is an interprime number because it is at equal distance from previous prime (115353011) and next prime (115353031).

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

It is not a de Polignac number, because 115353021 - 2⁹ = 115352509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5493001 = 115353021 / (1 + 1 + 5 + 3 + 5 + 3 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115353011) 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, 2746480 + ... + 2746521.

It is an arithmetic number, because the mean of its divisors is an integer number (21972008).

Almost surely, 2^115353021 is an apocalyptic number.

It is an amenable number.

115353021 is a deficient number, since it is larger than the sum of its proper divisors (60423043).

115353021 is an equidigital number, since it uses as much as digits as its factorization.

115353021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493011.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 115353021 is about 10740.2523713365. The cubic root of 115353021 is about 486.7915052126.

The spelling of 115353021 in words is "one hundred fifteen million, three hundred fifty-three thousand, twenty-one".