10530138529 has 4 divisors (see below), whose sum is σ = 10674387076. Its totient is φ = 10385889984.

The previous prime is 10530138517. The next prime is 10530138557. The reversal of 10530138529 is 92583103501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6033094929 + 4497043600 = 77673^2 + 67060^2 .

It is a cyclic number.

It is not a de Polignac number, because 10530138529 - 2²⁹ = 9993267617 is a prime.

It is a super-2 number, since 2×10530138529² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10530138629) 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, 72124164 + ... + 72124309.

It is an arithmetic number, because the mean of its divisors is an integer number (2668596769).

Almost surely, 2^10530138529 is an apocalyptic number.

It is an amenable number.

10530138529 is a deficient number, since it is larger than the sum of its proper divisors (144248547).

10530138529 is an equidigital number, since it uses as much as digits as its factorization.

10530138529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144248546.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 10530138529 in words is "ten billion, five hundred thirty million, one hundred thirty-eight thousand, five hundred twenty-nine".