1613019812 has 6 divisors (see below), whose sum is σ = 2822784678. Its totient is φ = 806509904.

The previous prime is 1613019809. The next prime is 1613019829. The reversal of 1613019812 is 2189103161.

It can be written as a sum of positive squares in only one way, i.e., 1559934016 + 53085796 = 39496^2 + 7286^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201627473 + ... + 201627480.

It is an arithmetic number, because the mean of its divisors is an integer number (470464113).

Almost surely, 2^1613019812 is an apocalyptic number.

It is an amenable number.

1613019812 is a deficient number, since it is larger than the sum of its proper divisors (1209764866).

1613019812 is a wasteful number, since it uses less digits than its factorization.

1613019812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403254957 (or 403254955 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1613019812 is about 40162.4179053005. The cubic root of 1613019812 is about 1172.7710420959.

The spelling of 1613019812 in words is "one billion, six hundred thirteen million, nineteen thousand, eight hundred twelve".