2122487 has 4 divisors (see below), whose sum is σ = 2131536. Its totient is φ = 2113440.

The previous prime is 2122469. The next prime is 2122489. The reversal of 2122487 is 7842212.

2122487 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 a cyclic number.

It is not a de Polignac number, because 2122487 - 2⁸ = 2122231 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 (2122489) 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, 4163 + ... + 4644.

It is an arithmetic number, because the mean of its divisors is an integer number (532884).

2^2122487 is an apocalyptic number.

2122487 is a deficient number, since it is larger than the sum of its proper divisors (9049).

2122487 is an equidigital number, since it uses as much as digits as its factorization.

2122487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048.

The product of its digits is 1792, while the sum is 26.

The square root of 2122487 is about 1456.8757668381. The cubic root of 2122487 is about 128.5133800862.

Adding to 2122487 its reverse (7842212), we get a palindrome (9964699).

The spelling of 2122487 in words is "two million, one hundred twenty-two thousand, four hundred eighty-seven".