10138791 has 32 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 5854464.

The previous prime is 10138789. The next prime is 10138801. The reversal of 10138791 is 19783101.

It is not a de Polignac number, because 10138791 - 2¹ = 10138789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10138091) 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 31 ways as a sum of consecutive naturals, for example, 79770 + ... + 79896.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^10138791 is an apocalyptic number.

10138791 is a deficient number, since it is larger than the sum of its proper divisors (5344089).

10138791 is a wasteful number, since it uses less digits than its factorization.

10138791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 10138791 is about 3184.1468245042. The cubic root of 10138791 is about 216.4356135218.

The spelling of 10138791 in words is "ten million, one hundred thirty-eight thousand, seven hundred ninety-one".