139876349 has 2 divisors, whose sum is σ = 139876350. Its totient is φ = 139876348.

The previous prime is 139876339. The next prime is 139876441. The reversal of 139876349 is 943678931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76562500 + 63313849 = 8750^2 + 7957^2 .

It is a cyclic number.

It is not a de Polignac number, because 139876349 - 2⁴ = 139876333 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 139876297 and 139876306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139876339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69938174 + 69938175.

It is an arithmetic number, because the mean of its divisors is an integer number (69938175).

Almost surely, 2^139876349 is an apocalyptic number.

It is an amenable number.

139876349 is a deficient number, since it is larger than the sum of its proper divisors (1).

139876349 is an equidigital number, since it uses as much as digits as its factorization.

139876349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 139876349 is about 11826.9332034979. The cubic root of 139876349 is about 519.0964944215.

The spelling of 139876349 in words is "one hundred thirty-nine million, eight hundred seventy-six thousand, three hundred forty-nine".