2278115 has 8 divisors (see below), whose sum is σ = 3124320. Its totient is φ = 1562112.

The previous prime is 2278109. The next prime is 2278117. The reversal of 2278115 is 5118722.

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 2278115 - 2⁸ = 2277859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2278117) 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, 32510 + ... + 32579.

It is an arithmetic number, because the mean of its divisors is an integer number (390540).

2^2278115 is an apocalyptic number.

2278115 is a deficient number, since it is larger than the sum of its proper divisors (846205).

2278115 is an equidigital number, since it uses as much as digits as its factorization.

2278115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65101.

The product of its digits is 1120, while the sum is 26.

The square root of 2278115 is about 1509.3425721154. The cubic root of 2278115 is about 131.5806056914.

The spelling of 2278115 in words is "two million, two hundred seventy-eight thousand, one hundred fifteen".