2121495 has 16 divisors (see below), whose sum is σ = 3512160. Its totient is φ = 1092224.

The previous prime is 2121479. The next prime is 2121503. The reversal of 2121495 is 5941212.

2121495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2121495 - 2⁴ = 2121479 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2004 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (219510).

2^2121495 is an apocalyptic number.

2121495 is a deficient number, since it is larger than the sum of its proper divisors (1390665).

2121495 is a wasteful number, since it uses less digits than its factorization.

2121495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914.

The product of its digits is 720, while the sum is 24.

The square root of 2121495 is about 1456.5352724874. The cubic root of 2121495 is about 128.4933555993.

The spelling of 2121495 in words is "two million, one hundred twenty-one thousand, four hundred ninety-five".