139010999 has 4 divisors (see below), whose sum is σ = 139374336. Its totient is φ = 138647664.

The previous prime is 139010987. The next prime is 139011001. The reversal of 139010999 is 999010931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999010931 = 139 ⋅7187129.

It is a cyclic number.

It is not a de Polignac number, because 139010999 - 2¹⁶ = 138945463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139010929) 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, 181094 + ... + 181859.

It is an arithmetic number, because the mean of its divisors is an integer number (34843584).

Almost surely, 2^139010999 is an apocalyptic number.

139010999 is a deficient number, since it is larger than the sum of its proper divisors (363337).

139010999 is an equidigital number, since it uses as much as digits as its factorization.

139010999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363336.

The product of its (nonzero) digits is 19683, while the sum is 41.

The square root of 139010999 is about 11790.2925748261. The cubic root of 139010999 is about 518.0238096717.

The spelling of 139010999 in words is "one hundred thirty-nine million, ten thousand, nine hundred ninety-nine".