861106013 has 4 divisors (see below), whose sum is σ = 862168608. Its totient is φ = 860043420.

The previous prime is 861106009. The next prime is 861106027. The reversal of 861106013 is 310601168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 861106013 - 2² = 861106009 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 (861106033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530081 + ... + 531702.

It is an arithmetic number, because the mean of its divisors is an integer number (215542152).

Almost surely, 2^861106013 is an apocalyptic number.

It is an amenable number.

861106013 is a deficient number, since it is larger than the sum of its proper divisors (1062595).

861106013 is a wasteful number, since it uses less digits than its factorization.

861106013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062594.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 861106013 is about 29344.6079033270. The cubic root of 861106013 is about 951.3760347186.

The spelling of 861106013 in words is "eight hundred sixty-one million, one hundred six thousand, thirteen".