2979305145 has 24 divisors (see below), whose sum is σ = 5355395136. Its totient is φ = 1588962096.

The previous prime is 2979305129. The next prime is 2979305149. The reversal of 2979305145 is 5415039792.

It is a happy number.

2979305145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2979305145 - 2⁴ = 2979305129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2979305145.

It is not an unprimeable number, because it can be changed into a prime (2979305149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224837 + ... + 1227266.

It is an arithmetic number, because the mean of its divisors is an integer number (223141464).

Almost surely, 2^2979305145 is an apocalyptic number.

It is an amenable number.

2979305145 is a deficient number, since it is larger than the sum of its proper divisors (2376089991).

2979305145 is an equidigital number, since it uses as much as digits as its factorization.

2979305145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452123 (or 2452111 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 2979305145 is about 54583.0115054126. The cubic root of 2979305145 is about 1438.9255657139.

The spelling of 2979305145 in words is "two billion, nine hundred seventy-nine million, three hundred five thousand, one hundred forty-five".