10865139 has 4 divisors (see below), whose sum is σ = 14486856. Its totient is φ = 7243424.

The previous prime is 10865083. The next prime is 10865143. The reversal of 10865139 is 93156801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93156801 = 3 ⋅31052267.

It is a cyclic number.

It is not a de Polignac number, because 10865139 - 2⁸ = 10864883 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (10865149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1810854 + ... + 1810859.

It is an arithmetic number, because the mean of its divisors is an integer number (3621714).

Almost surely, 2^10865139 is an apocalyptic number.

10865139 is a deficient number, since it is larger than the sum of its proper divisors (3621717).

10865139 is an equidigital number, since it uses as much as digits as its factorization.

10865139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621716.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 10865139 is about 3296.2310295245. The cubic root of 10865139 is about 221.4853959903.

The spelling of 10865139 in words is "ten million, eight hundred sixty-five thousand, one hundred thirty-nine".