2121508 has 12 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 1054472.

The previous prime is 2121503. The next prime is 2121529. The reversal of 2121508 is 8051212.

It is not an unprimeable number, because it can be changed into a prime (2121503) 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, 766 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

2^2121508 is an apocalyptic number.

It is an amenable number.

2121508 is a deficient number, since it is larger than the sum of its proper divisors (1613132).

2121508 is a wasteful number, since it uses less digits than its factorization.

2121508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146 (or 3144 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2121508 is about 1456.5397351257. The cubic root of 2121508 is about 128.4936180573.

The spelling of 2121508 in words is "two million, one hundred twenty-one thousand, five hundred eight".