139348901 has 2 divisors, whose sum is σ = 139348902. Its totient is φ = 139348900.

The previous prime is 139348877. The next prime is 139348921. The reversal of 139348901 is 109843931.

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., 93122500 + 46226401 = 9650^2 + 6799^2 .

It is a cyclic number.

It is not a de Polignac number, because 139348901 - 2¹⁰ = 139347877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139348921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69674450 + 69674451.

It is an arithmetic number, because the mean of its divisors is an integer number (69674451).

Almost surely, 2^139348901 is an apocalyptic number.

It is an amenable number.

139348901 is a deficient number, since it is larger than the sum of its proper divisors (1).

139348901 is an equidigital number, since it uses as much as digits as its factorization.

139348901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 139348901 is about 11804.6135472535. The cubic root of 139348901 is about 518.4432000945.

The spelling of 139348901 in words is "one hundred thirty-nine million, three hundred forty-eight thousand, nine hundred one".