8115901 has 4 divisors (see below), whose sum is σ = 8121600. Its totient is φ = 8110204.

The previous prime is 8115889. The next prime is 8115937. The reversal of 8115901 is 1095118.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1095118 = 2 ⋅547559.

It is a cyclic number.

It is not a de Polignac number, because 8115901 - 2¹⁷ = 7984829 is a prime.

It is a super-3 number, since 3×8115901³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

8115901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8115101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380 + ... + 4258.

It is an arithmetic number, because the mean of its divisors is an integer number (2030400).

Almost surely, 2^8115901 is an apocalyptic number.

It is an amenable number.

8115901 is a deficient number, since it is larger than the sum of its proper divisors (5699).

8115901 is a wasteful number, since it uses less digits than its factorization.

8115901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 8115901 is about 2848.8420454634. The cubic root of 8115901 is about 200.9612145983.

The spelling of 8115901 in words is "eight million, one hundred fifteen thousand, nine hundred one".