8118415 has 16 divisors (see below), whose sum is σ = 10372320. Its totient is φ = 6082560.

The previous prime is 8118413. The next prime is 8118433. The reversal of 8118415 is 5148118.

It is not a de Polignac number, because 8118415 - 2¹ = 8118413 is a prime.

It is a super-2 number, since 2×8118415² = 131817324224450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118413) 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, 8775 + ... + 9655.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^8118415 is an apocalyptic number.

8118415 is a deficient number, since it is larger than the sum of its proper divisors (2253905).

8118415 is a wasteful number, since it uses less digits than its factorization.

8118415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its digits is 1280, while the sum is 28.

The square root of 8118415 is about 2849.2832432035. The cubic root of 8118415 is about 200.9819625242.

It can be divided in two parts, 81 and 18415, that added together give a square (18496 = 136²).

The spelling of 8118415 in words is "eight million, one hundred eighteen thousand, four hundred fifteen".