2115487 has 4 divisors (see below), whose sum is σ = 2307816. Its totient is φ = 1923160.

The previous prime is 2115481. The next prime is 2115493. The reversal of 2115487 is 7845112.

2115487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2115481) and next prime (2115493).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96148 + ... + 96169.

It is an arithmetic number, because the mean of its divisors is an integer number (576954).

2^2115487 is an apocalyptic number.

2115487 is a deficient number, since it is larger than the sum of its proper divisors (192329).

2115487 is a wasteful number, since it uses less digits than its factorization.

2115487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192328.

The product of its digits is 2240, while the sum is 28.

The square root of 2115487 is about 1454.4713816366. The cubic root of 2115487 is about 128.3719446796.

The spelling of 2115487 in words is "two million, one hundred fifteen thousand, four hundred eighty-seven".