139159829 has 2 divisors, whose sum is σ = 139159830. Its totient is φ = 139159828.

The previous prime is 139159753. The next prime is 139159847. The reversal of 139159829 is 928951931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116100625 + 23059204 = 10775^2 + 4802^2 .

It is an emirp because it is prime and its reverse (928951931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139159829 - 2¹² = 139155733 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 (139150829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69579914 + 69579915.

It is an arithmetic number, because the mean of its divisors is an integer number (69579915).

Almost surely, 2^139159829 is an apocalyptic number.

It is an amenable number.

139159829 is a deficient number, since it is larger than the sum of its proper divisors (1).

139159829 is an equidigital number, since it uses as much as digits as its factorization.

139159829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 47.

The square root of 139159829 is about 11796.6024345995. The cubic root of 139159829 is about 518.2086151573.

The spelling of 139159829 in words is "one hundred thirty-nine million, one hundred fifty-nine thousand, eight hundred twenty-nine".