139751219 has 2 divisors, whose sum is σ = 139751220. Its totient is φ = 139751218.

The previous prime is 139751191. The next prime is 139751231. The reversal of 139751219 is 912157931.

139751219 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 is a cyclic number.

It is not a de Polignac number, because 139751219 - 2¹⁶ = 139685683 is a prime.

It is a super-2 number, since 2×139751219² = 39060806423971922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (139751239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69875609 + 69875610.

It is an arithmetic number, because the mean of its divisors is an integer number (69875610).

Almost surely, 2^139751219 is an apocalyptic number.

139751219 is a deficient number, since it is larger than the sum of its proper divisors (1).

139751219 is an equidigital number, since it uses as much as digits as its factorization.

139751219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 38.

The square root of 139751219 is about 11821.6419756310. The cubic root of 139751219 is about 518.9416578501.

The spelling of 139751219 in words is "one hundred thirty-nine million, seven hundred fifty-one thousand, two hundred nineteen".