3139901 has 2 divisors, whose sum is σ = 3139902. Its totient is φ = 3139900.

The previous prime is 3139889. The next prime is 3139907. The reversal of 3139901 is 1099313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 1207801 = 1390^2 + 1099^2 .

It is an emirp because it is prime and its reverse (1099313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3139901 - 2⁶ = 3139837 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is equal to p₂₂₆₁₆₉ and since 3139901 and 226169 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3139907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569950 + 1569951.

It is an arithmetic number, because the mean of its divisors is an integer number (1569951).

Almost surely, 2^3139901 is an apocalyptic number.

It is an amenable number.

3139901 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139901 is an equidigital number, since it uses as much as digits as its factorization.

3139901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 3139901 is about 1771.9765799807. The cubic root of 3139901 is about 146.4328960735.

The spelling of 3139901 in words is "three million, one hundred thirty-nine thousand, nine hundred one".