139419429 has 8 divisors (see below), whose sum is σ = 188667360. Its totient is φ = 91558896.

The previous prime is 139419421. The next prime is 139419433. The reversal of 139419429 is 924914931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139419429 - 2³ = 139419421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139419421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346614 + ... + 347015.

It is an arithmetic number, because the mean of its divisors is an integer number (23583420).

Almost surely, 2^139419429 is an apocalyptic number.

It is an amenable number.

139419429 is a deficient number, since it is larger than the sum of its proper divisors (49247931).

139419429 is an equidigital number, since it uses as much as digits as its factorization.

139419429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693699.

The product of its digits is 69984, while the sum is 42.

The square root of 139419429 is about 11807.6004759646. The cubic root of 139419429 is about 518.5306510771.

The spelling of 139419429 in words is "one hundred thirty-nine million, four hundred nineteen thousand, four hundred twenty-nine".