10139161 has 4 divisors (see below), whose sum is σ = 10156212. Its totient is φ = 10122112.

The previous prime is 10139149. The next prime is 10139203. The reversal of 10139161 is 16193101.

It is a happy number.

10139161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16193101 = 431 ⋅37571.

It can be written as a sum of positive squares in 2 ways, for example, as 5382400 + 4756761 = 2320^2 + 2181^2 .

It is a cyclic number.

It is not a de Polignac number, because 10139161 - 2⁷ = 10139033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10130161) 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, 7600 + ... + 8833.

It is an arithmetic number, because the mean of its divisors is an integer number (2539053).

Almost surely, 2^10139161 is an apocalyptic number.

It is an amenable number.

10139161 is a deficient number, since it is larger than the sum of its proper divisors (17051).

10139161 is an equidigital number, since it uses as much as digits as its factorization.

10139161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17050.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 10139161 is about 3184.2049243100. The cubic root of 10139161 is about 216.4382463210.

The spelling of 10139161 in words is "ten million, one hundred thirty-nine thousand, one hundred sixty-one".