103139444929 has 4 divisors (see below), whose sum is σ = 103142694960. Its totient is φ = 103136194900.

The previous prime is 103139444927. The next prime is 103139444971. The reversal of 103139444929 is 929444931301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103139444929 - 2¹ = 103139444927 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103139444921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576939 + ... + 1641040.

It is an arithmetic number, because the mean of its divisors is an integer number (25785673740).

Almost surely, 2^103139444929 is an apocalyptic number.

It is an amenable number.

103139444929 is a deficient number, since it is larger than the sum of its proper divisors (3250031).

103139444929 is an equidigital number, since it uses as much as digits as its factorization.

103139444929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250030.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 103139444929 in words is "one hundred three billion, one hundred thirty-nine million, four hundred forty-four thousand, nine hundred twenty-nine".