10500913 has 4 divisors (see below), whose sum is σ = 10577700. Its totient is φ = 10424128.

The previous prime is 10500907. The next prime is 10500923. The reversal of 10500913 is 31900501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31900501 = 41 ⋅778061.

It can be written as a sum of positive squares in 2 ways, for example, as 8392609 + 2108304 = 2897^2 + 1452^2 .

It is a cyclic number.

It is not a de Polignac number, because 10500913 - 2²¹ = 8403761 is a prime.

It is a super-2 number, since 2×10500913² = 220538347667138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10500923) 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, 38188 + ... + 38461.

It is an arithmetic number, because the mean of its divisors is an integer number (2644425).

Almost surely, 2^10500913 is an apocalyptic number.

It is an amenable number.

10500913 is a deficient number, since it is larger than the sum of its proper divisors (76787).

10500913 is an equidigital number, since it uses as much as digits as its factorization.

10500913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76786.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 10500913 is about 3240.5112251001. The cubic root of 10500913 is about 218.9823036374.

The spelling of 10500913 in words is "ten million, five hundred thousand, nine hundred thirteen".