2145348279 has 24 divisors (see below), whose sum is σ = 3131110320. Its totient is φ = 1415377152.

The previous prime is 2145348263. The next prime is 2145348307. The reversal of 2145348279 is 9728435412.

It is not a de Polignac number, because 2145348279 - 2⁴ = 2145348263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145348209) 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, 896817 + ... + 899205.

It is an arithmetic number, because the mean of its divisors is an integer number (130462930).

Almost surely, 2^2145348279 is an apocalyptic number.

2145348279 is a deficient number, since it is larger than the sum of its proper divisors (985762041).

2145348279 is a wasteful number, since it uses less digits than its factorization.

2145348279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391 (or 3388 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2145348279 is about 46317.9045186632. The cubic root of 2145348279 is about 1289.7313862921.

The spelling of 2145348279 in words is "two billion, one hundred forty-five million, three hundred forty-eight thousand, two hundred seventy-nine".