1613143420 has 24 divisors (see below), whose sum is σ = 3871544544. Its totient is φ = 553077696.

The previous prime is 1613143397. The next prime is 1613143471. The reversal of 1613143420 is 243413161.

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, 5761087 + ... + 5761366.

It is an arithmetic number, because the mean of its divisors is an integer number (161314356).

Almost surely, 2^1613143420 is an apocalyptic number.

1613143420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1613143420 is an abundant number, since it is smaller than the sum of its proper divisors (2258401124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613143420 is a wasteful number, since it uses less digits than its factorization.

1613143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11522469 (or 11522467 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1613143420 is about 40163.9567273943. The cubic root of 1613143420 is about 1172.8009983678.

Adding to 1613143420 its reverse (243413161), we get a palindrome (1856556581).

The spelling of 1613143420 in words is "one billion, six hundred thirteen million, one hundred forty-three thousand, four hundred twenty".