138160841 has 24 divisors (see below), whose sum is σ = 175097160. Its totient is φ = 108041472.

The previous prime is 138160811. The next prime is 138160859. The reversal of 138160841 is 148061831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12250000 + 125910841 = 3500^2 + 11221^2 .

It is a de Polignac number, because none of the positive numbers 2^k-138160841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138160798 and 138160807.

It is not an unprimeable number, because it can be changed into a prime (138160811) 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, 55475 + ... + 57911.

It is an arithmetic number, because the mean of its divisors is an integer number (7295715).

Almost surely, 2^138160841 is an apocalyptic number.

It is an amenable number.

138160841 is a deficient number, since it is larger than the sum of its proper divisors (36936319).

138160841 is a wasteful number, since it uses less digits than its factorization.

138160841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 138160841 is about 11754.1839784819. The cubic root of 138160841 is about 516.9656129583.

The spelling of 138160841 in words is "one hundred thirty-eight million, one hundred sixty thousand, eight hundred forty-one".