1613143411 has 4 divisors (see below), whose sum is σ = 1759792824. Its totient is φ = 1466494000.

The previous prime is 1613143397. The next prime is 1613143471. The reversal of 1613143411 is 1143413161.

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-1613143411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613143471) 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, 73324690 + ... + 73324711.

It is an arithmetic number, because the mean of its divisors is an integer number (439948206).

Almost surely, 2^1613143411 is an apocalyptic number.

1613143411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1613143411 is a deficient number, since it is larger than the sum of its proper divisors (146649413).

1613143411 is a wasteful number, since it uses less digits than its factorization.

1613143411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146649412.

The product of its digits is 864, while the sum is 25.

The square root of 1613143411 is about 40163.9566153535. The cubic root of 1613143411 is about 1172.8009961867.

Adding to 1613143411 its reverse (1143413161), we get a palindrome (2756556572).

The spelling of 1613143411 in words is "one billion, six hundred thirteen million, one hundred forty-three thousand, four hundred eleven".