2151416 has 8 divisors (see below), whose sum is σ = 4033920. Its totient is φ = 1075704.

The previous prime is 2151403. The next prime is 2151421. The reversal of 2151416 is 6141512.

2151416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 134456 + ... + 134471.

It is an arithmetic number, because the mean of its divisors is an integer number (504240).

2^2151416 is an apocalyptic number.

It is an amenable number.

2151416 is a deficient number, since it is larger than the sum of its proper divisors (1882504).

2151416 is a wasteful number, since it uses less digits than its factorization.

2151416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268933 (or 268929 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 2151416 is about 1466.7706023779. The cubic root of 2151416 is about 129.0946164018.

Adding to 2151416 its reverse (6141512), we get a palindrome (8292928).

The spelling of 2151416 in words is "two million, one hundred fifty-one thousand, four hundred sixteen".