3420245143 has 4 divisors (see below), whose sum is σ = 3908851600. Its totient is φ = 2931638688.

The previous prime is 3420245117. The next prime is 3420245209. The reversal of 3420245143 is 3415420243.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3420245143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420245243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244303218 + ... + 244303231.

It is an arithmetic number, because the mean of its divisors is an integer number (977212900).

Almost surely, 2^3420245143 is an apocalyptic number.

3420245143 is a deficient number, since it is larger than the sum of its proper divisors (488606457).

3420245143 is an equidigital number, since it uses as much as digits as its factorization.

3420245143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488606456.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 3420245143 is about 58482.8619597229. The cubic root of 3420245143 is about 1506.6732519280.

Adding to 3420245143 its reverse (3415420243), we get a palindrome (6835665386).

The spelling of 3420245143 in words is "three billion, four hundred twenty million, two hundred forty-five thousand, one hundred forty-three".