1016861813 has 8 divisors (see below), whose sum is σ = 1117402560. Its totient is φ = 917670880.

The previous prime is 1016861761. The next prime is 1016861819. The reversal of 1016861813 is 3181686101.

1016861813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1016861813 - 2²⁶ = 949752949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016861819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335873 + ... + 338886.

It is an arithmetic number, because the mean of its divisors is an integer number (139675320).

Almost surely, 2^1016861813 is an apocalyptic number.

It is an amenable number.

1016861813 is a deficient number, since it is larger than the sum of its proper divisors (100540747).

1016861813 is a wasteful number, since it uses less digits than its factorization.

1016861813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674907.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1016861813 is about 31888.2707746908. The cubic root of 1016861813 is about 1005.5893057902.

The spelling of 1016861813 in words is "one billion, sixteen million, eight hundred sixty-one thousand, eight hundred thirteen".