13861071 has 24 divisors (see below), whose sum is σ = 23889840. Its totient is φ = 7919856.

The previous prime is 13861063. The next prime is 13861073. The reversal of 13861071 is 17016831.

13861071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13861071 - 2³ = 13861063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3916 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (995410).

Almost surely, 2^13861071 is an apocalyptic number.

13861071 is a deficient number, since it is larger than the sum of its proper divisors (10028769).

13861071 is a wasteful number, since it uses less digits than its factorization.

13861071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500 (or 10487 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 13861071 is about 3723.0459304177. The cubic root of 13861071 is about 240.2143397699.

The spelling of 13861071 in words is "thirteen million, eight hundred sixty-one thousand, seventy-one".