115003821 has 16 divisors (see below), whose sum is σ = 158938560. Its totient is φ = 73879680.

The previous prime is 115003813. The next prime is 115003859. The reversal of 115003821 is 128300511.

It is not a de Polignac number, because 115003821 - 2³ = 115003813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115003871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59161 + ... + 61073.

It is an arithmetic number, because the mean of its divisors is an integer number (9933660).

Almost surely, 2^115003821 is an apocalyptic number.

It is an amenable number.

115003821 is a deficient number, since it is larger than the sum of its proper divisors (43934739).

115003821 is a wasteful number, since it uses less digits than its factorization.

115003821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 115003821 is about 10723.9834483274. The cubic root of 115003821 is about 486.2997989366.

The spelling of 115003821 in words is "one hundred fifteen million, three thousand, eight hundred twenty-one".