2215995 has 16 divisors (see below), whose sum is σ = 3566112. Its totient is φ = 1175040.

The previous prime is 2215991. The next prime is 2215999. The reversal of 2215995 is 5995122.

It is an interprime number because it is at equal distance from previous prime (2215991) and next prime (2215999).

It is not a de Polignac number, because 2215995 - 2² = 2215991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215991) 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, 3309 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (222882).

2^2215995 is an apocalyptic number.

2215995 is a deficient number, since it is larger than the sum of its proper divisors (1350117).

2215995 is a wasteful number, since it uses less digits than its factorization.

2215995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862.

The product of its digits is 8100, while the sum is 33.

The square root of 2215995 is about 1488.6218458695. The cubic root of 2215995 is about 130.3735802486.

It can be divided in two parts, 221 and 5995, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 2215995 in words is "two million, two hundred fifteen thousand, nine hundred ninety-five".