2151608 has 16 divisors (see below), whose sum is σ = 4050000. Its totient is φ = 1071616.

The previous prime is 2151607. The next prime is 2151619. The reversal of 2151608 is 8061512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151607) 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, 3293 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (253125).

2^2151608 is an apocalyptic number.

It is an amenable number.

2151608 is a deficient number, since it is larger than the sum of its proper divisors (1898392).

2151608 is a wasteful number, since it uses less digits than its factorization.

2151608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2151608 is about 1466.8360508250. The cubic root of 2151608 is about 129.0984565748.

The spelling of 2151608 in words is "two million, one hundred fifty-one thousand, six hundred eight".