9750139 has 4 divisors (see below), whose sum is σ = 11143024. Its totient is φ = 8357256.

The previous prime is 9750079. The next prime is 9750157. The reversal of 9750139 is 9310579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9310579 = 467 ⋅19937.

It is a cyclic number.

It is not a de Polignac number, because 9750139 - 2⁷ = 9750011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9750239) 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, 696432 + ... + 696445.

It is an arithmetic number, because the mean of its divisors is an integer number (2785756).

Almost surely, 2^9750139 is an apocalyptic number.

9750139 is a deficient number, since it is larger than the sum of its proper divisors (1392885).

9750139 is a wasteful number, since it uses less digits than its factorization.

9750139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392884.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 9750139 is about 3122.5212569332. The cubic root of 9750139 is about 213.6339492930.

It can be divided in two parts, 9750 and 139, that added together give a palindrome (9889).

The spelling of 9750139 in words is "nine million, seven hundred fifty thousand, one hundred thirty-nine".