10530139 has 4 divisors (see below), whose sum is σ = 10543024. Its totient is φ = 10517256.

The previous prime is 10530137. The next prime is 10530151. The reversal of 10530139 is 93103501.

10530139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93103501 = 1699 ⋅54799.

It is a cyclic number.

It is not a de Polignac number, because 10530139 - 2¹ = 10530137 is a prime.

It is a super-2 number, since 2×10530139² = 221767654718642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10530133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5127 + ... + 6880.

It is an arithmetic number, because the mean of its divisors is an integer number (2635756).

Almost surely, 2^10530139 is an apocalyptic number.

10530139 is a deficient number, since it is larger than the sum of its proper divisors (12885).

10530139 is an equidigital number, since it uses as much as digits as its factorization.

10530139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 10530139 is about 3245.0175654378. The cubic root of 10530139 is about 219.1852716563.

The spelling of 10530139 in words is "ten million, five hundred thirty thousand, one hundred thirty-nine".