2145143245 has 8 divisors (see below), whose sum is σ = 2941910784. Its totient is φ = 1470955344.

The previous prime is 2145143219. The next prime is 2145143251. The reversal of 2145143245 is 5423415412.

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 2145143245 - 2⁵ = 2145143213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30644869 + ... + 30644938.

It is an arithmetic number, because the mean of its divisors is an integer number (367738848).

Almost surely, 2^2145143245 is an apocalyptic number.

It is an amenable number.

2145143245 is a deficient number, since it is larger than the sum of its proper divisors (796767539).

2145143245 is an equidigital number, since it uses as much as digits as its factorization.

2145143245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61289819.

The product of its digits is 19200, while the sum is 31.

The square root of 2145143245 is about 46315.6911316241. The cubic root of 2145143245 is about 1289.6902978260.

Adding to 2145143245 its reverse (5423415412), we get a palindrome (7568558657).

The spelling of 2145143245 in words is "two billion, one hundred forty-five million, one hundred forty-three thousand, two hundred forty-five".