139271641 has 8 divisors (see below), whose sum is σ = 140790600. Its totient is φ = 137760768.

The previous prime is 139271611. The next prime is 139271677. The reversal of 139271641 is 146172931.

139271641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5198400 + 134073241 = 2280^2 + 11579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139271641 - 2⁵ = 139271609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139271597 and 139271606.

It is not an unprimeable number, because it can be changed into a prime (139271611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36475 + ... + 40111.

It is an arithmetic number, because the mean of its divisors is an integer number (17598825).

Almost surely, 2^139271641 is an apocalyptic number.

It is an amenable number.

139271641 is a deficient number, since it is larger than the sum of its proper divisors (1518959).

139271641 is a wasteful number, since it uses less digits than its factorization.

139271641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043.

The product of its digits is 9072, while the sum is 34.

The square root of 139271641 is about 11801.3406441811. The cubic root of 139271641 is about 518.3473679153.

The spelling of 139271641 in words is "one hundred thirty-nine million, two hundred seventy-one thousand, six hundred forty-one".