1613143412 has 6 divisors (see below), whose sum is σ = 2823000978. Its totient is φ = 806571704.

The previous prime is 1613143397. The next prime is 1613143471. The reversal of 1613143412 is 2143413161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1581175696 + 31967716 = 39764^2 + 5654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201642923 + ... + 201642930.

It is an arithmetic number, because the mean of its divisors is an integer number (470500163).

Almost surely, 2^1613143412 is an apocalyptic number.

It is an amenable number.

1613143412 is a deficient number, since it is larger than the sum of its proper divisors (1209857566).

1613143412 is a wasteful number, since it uses less digits than its factorization.

1613143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403285857 (or 403285855 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 1613143412 is about 40163.9566278025. The cubic root of 1613143412 is about 1172.8009964291.

Adding to 1613143412 its reverse (2143413161), we get a palindrome (3756556573).

The spelling of 1613143412 in words is "one billion, six hundred thirteen million, one hundred forty-three thousand, four hundred twelve".