2979145 has 8 divisors (see below), whose sum is σ = 3850056. Its totient is φ = 2199936.

The previous prime is 2979139. The next prime is 2979149. The reversal of 2979145 is 5419792.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 2866249 = 336^2 + 1693^2 .

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 2979145 - 2⁷ = 2979017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22852 + ... + 22981.

It is an arithmetic number, because the mean of its divisors is an integer number (481257).

2^2979145 is an apocalyptic number.

It is an amenable number.

2979145 is a deficient number, since it is larger than the sum of its proper divisors (870911).

2979145 is a wasteful number, since it uses less digits than its factorization.

2979145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45851.

The product of its digits is 22680, while the sum is 37.

The square root of 2979145 is about 1726.0199882968. The cubic root of 2979145 is about 143.8899783319.

The spelling of 2979145 in words is "two million, nine hundred seventy-nine thousand, one hundred forty-five".