139001929 has 16 divisors (see below), whose sum is σ = 163342080. Its totient is φ = 116922960.

The previous prime is 139001917. The next prime is 139001953. The reversal of 139001929 is 929100931.

It is not a de Polignac number, because 139001929 - 2⁷ = 139001801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139001894 and 139001903.

It is not an unprimeable number, because it can be changed into a prime (139001909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254 + ... + 16720.

It is an arithmetic number, because the mean of its divisors is an integer number (10208880).

Almost surely, 2^139001929 is an apocalyptic number.

139001929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

139001929 is a deficient number, since it is larger than the sum of its proper divisors (24340151).

139001929 is a wasteful number, since it uses less digits than its factorization.

139001929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15540.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 139001929 is about 11789.9079300900. The cubic root of 139001929 is about 518.0125429897.

The spelling of 139001929 in words is "one hundred thirty-nine million, one thousand, nine hundred twenty-nine".