2121502 has 8 divisors (see below), whose sum is σ = 3349800. Its totient is φ = 1004904.

The previous prime is 2121479. The next prime is 2121503. The reversal of 2121502 is 2051212.

2121502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121503) 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, 27877 + ... + 27952.

It is an arithmetic number, because the mean of its divisors is an integer number (418725).

2^2121502 is an apocalyptic number.

2121502 is a deficient number, since it is larger than the sum of its proper divisors (1228298).

2121502 is a wasteful number, since it uses less digits than its factorization.

2121502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55850.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2121502 is about 1456.5376754482. The cubic root of 2121502 is about 128.4934969229.

Adding to 2121502 its reverse (2051212), we get a palindrome (4172714).

The spelling of 2121502 in words is "two million, one hundred twenty-one thousand, five hundred two".