9980139 has 16 divisors (see below), whose sum is σ = 15174432. Its totient is φ = 5779968.

The previous prime is 9980129. The next prime is 9980141. The reversal of 9980139 is 9310899.

It is not a de Polignac number, because 9980139 - 2⁴ = 9980123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 9980097 and 9980106.

It is not an unprimeable number, because it can be changed into a prime (9980129) 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 15 ways as a sum of consecutive naturals, for example, 6864 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (948402).

Almost surely, 2^9980139 is an apocalyptic number.

9980139 is a deficient number, since it is larger than the sum of its proper divisors (5194293).

9980139 is a wasteful number, since it uses less digits than its factorization.

9980139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15086.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9980139 is about 3159.1357995503. The cubic root of 9980139 is about 215.3007437146.

The spelling of 9980139 in words is "nine million, nine hundred eighty thousand, one hundred thirty-nine".