2154079 has 8 divisors (see below), whose sum is σ = 2222640. Its totient is φ = 2086656.

The previous prime is 2154077. The next prime is 2154109. The reversal of 2154079 is 9704512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2154079 - 2¹ = 2154077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4932 + ... + 5350.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

2^2154079 is an apocalyptic number.

2154079 is a deficient number, since it is larger than the sum of its proper divisors (68561).

2154079 is an equidigital number, since it uses as much as digits as its factorization.

2154079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2154079 is about 1467.6780982218. The cubic root of 2154079 is about 129.1478584246.

The spelling of 2154079 in words is "two million, one hundred fifty-four thousand, seventy-nine".