139476941 has 2 divisors, whose sum is σ = 139476942. Its totient is φ = 139476940.

The previous prime is 139476937. The next prime is 139476943. The reversal of 139476941 is 149674931.

139476941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139476100 + 841 = 11810^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 139476941 - 2² = 139476937 is a prime.

Together with 139476943, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 139476892 and 139476901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139476943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69738470 + 69738471.

It is an arithmetic number, because the mean of its divisors is an integer number (69738471).

Almost surely, 2^139476941 is an apocalyptic number.

It is an amenable number.

139476941 is a deficient number, since it is larger than the sum of its proper divisors (1).

139476941 is an equidigital number, since it uses as much as digits as its factorization.

139476941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 139476941 is about 11810.0356053655. The cubic root of 139476941 is about 518.6019410816.

The spelling of 139476941 in words is "one hundred thirty-nine million, four hundred seventy-six thousand, nine hundred forty-one".