139069799 has 8 divisors (see below), whose sum is σ = 158308992. Its totient is φ = 120930040.

The previous prime is 139069793. The next prime is 139069831. The reversal of 139069799 is 997960931.

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

It is not a de Polignac number, because 139069799 - 2⁸ = 139069543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139069799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139069793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274589 + ... + 275094.

It is an arithmetic number, because the mean of its divisors is an integer number (19788624).

Almost surely, 2^139069799 is an apocalyptic number.

139069799 is a deficient number, since it is larger than the sum of its proper divisors (19239193).

139069799 is a wasteful number, since it uses less digits than its factorization.

139069799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549717.

The product of its (nonzero) digits is 826686, while the sum is 53.

The square root of 139069799 is about 11792.7858879910. The cubic root of 139069799 is about 518.0968386802.

The spelling of 139069799 in words is "one hundred thirty-nine million, sixty-nine thousand, seven hundred ninety-nine".