2145251343 has 4 divisors (see below), whose sum is σ = 2860335128. Its totient is φ = 1430167560.

The previous prime is 2145251327. The next prime is 2145251351. The reversal of 2145251343 is 3431525412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2145251343 - 2⁴ = 2145251327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145251343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145251363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357541888 + ... + 357541893.

It is an arithmetic number, because the mean of its divisors is an integer number (715083782).

Almost surely, 2^2145251343 is an apocalyptic number.

2145251343 is a deficient number, since it is larger than the sum of its proper divisors (715083785).

2145251343 is an equidigital number, since it uses as much as digits as its factorization.

2145251343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715083784.

The product of its digits is 14400, while the sum is 30.

The square root of 2145251343 is about 46316.8580864462. The cubic root of 2145251343 is about 1289.7119608083.

Adding to 2145251343 its reverse (3431525412), we get a palindrome (5576776755).

The spelling of 2145251343 in words is "two billion, one hundred forty-five million, two hundred fifty-one thousand, three hundred forty-three".