1613089812 has 48 divisors (see below), whose sum is σ = 3999506112. Its totient is φ = 504261120.

The previous prime is 1613089787. The next prime is 1613089817. The reversal of 1613089812 is 2189803161.

It is a super-3 number, since 3×1613089812³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613089817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43762 + ... + 71702.

It is an arithmetic number, because the mean of its divisors is an integer number (83323044).

Almost surely, 2^1613089812 is an apocalyptic number.

1613089812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613089812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999753056).

1613089812 is an abundant number, since it is smaller than the sum of its proper divisors (2386416300).

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

1613089812 is a wasteful number, since it uses less digits than its factorization.

1613089812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28248 (or 28246 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1613089812 is about 40163.2893573223. The cubic root of 1613089812 is about 1172.7880067120.

The spelling of 1613089812 in words is "one billion, six hundred thirteen million, eighty-nine thousand, eight hundred twelve".