139826941 has 2 divisors, whose sum is σ = 139826942. Its totient is φ = 139826940.

The previous prime is 139826917. The next prime is 139826963. The reversal of 139826941 is 149628931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 7001316 = 11525^2 + 2646^2 .

It is a cyclic number.

It is not a de Polignac number, because 139826941 - 2¹⁵ = 139794173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139826041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69913470 + 69913471.

It is an arithmetic number, because the mean of its divisors is an integer number (69913471).

Almost surely, 2^139826941 is an apocalyptic number.

It is an amenable number.

139826941 is a deficient number, since it is larger than the sum of its proper divisors (1).

139826941 is an equidigital number, since it uses as much as digits as its factorization.

139826941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 139826941 is about 11824.8442273038. The cubic root of 139826941 is about 519.0353677188.

The spelling of 139826941 in words is "one hundred thirty-nine million, eight hundred twenty-six thousand, nine hundred forty-one".