2120587 has 4 divisors (see below), whose sum is σ = 2423536. Its totient is φ = 1817640.

The previous prime is 2120579. The next prime is 2120611. The reversal of 2120587 is 7850212.

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 2120587 - 2³ = 2120579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151464 + ... + 151477.

It is an arithmetic number, because the mean of its divisors is an integer number (605884).

2^2120587 is an apocalyptic number.

2120587 is a deficient number, since it is larger than the sum of its proper divisors (302949).

2120587 is an equidigital number, since it uses as much as digits as its factorization.

2120587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302948.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2120587 is about 1456.2235405322. The cubic root of 2120587 is about 128.4750212617.

Adding to 2120587 its reverse (7850212), we get a palindrome (9970799).

The spelling of 2120587 in words is "two million, one hundred twenty thousand, five hundred eighty-seven".