139741429 has 2 divisors, whose sum is σ = 139741430. Its totient is φ = 139741428.

The previous prime is 139741361. The next prime is 139741451. The reversal of 139741429 is 924147931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127735204 + 12006225 = 11302^2 + 3465^2 .

It is a cyclic number.

It is not a de Polignac number, because 139741429 - 2¹⁷ = 139610357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139741391 and 139741400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139741729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69870714 + 69870715.

It is an arithmetic number, because the mean of its divisors is an integer number (69870715).

Almost surely, 2^139741429 is an apocalyptic number.

It is an amenable number.

139741429 is a deficient number, since it is larger than the sum of its proper divisors (1).

139741429 is an equidigital number, since it uses as much as digits as its factorization.

139741429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 139741429 is about 11821.2278973041. The cubic root of 139741429 is about 518.9295397507.

The spelling of 139741429 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, four hundred twenty-nine".