10013391 has 12 divisors (see below), whose sum is σ = 15314832. Its totient is φ = 6282816.

The previous prime is 10013387. The next prime is 10013401. The reversal of 10013391 is 19331001.

It is not a de Polignac number, because 10013391 - 2² = 10013387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013321) 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 11 ways as a sum of consecutive naturals, for example, 32571 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (1276236).

Almost surely, 2^10013391 is an apocalyptic number.

10013391 is a deficient number, since it is larger than the sum of its proper divisors (5301441).

10013391 is a wasteful number, since it uses less digits than its factorization.

10013391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65470 (or 65467 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 10013391 is about 3164.3942548298. The cubic root of 10013391 is about 215.5395928926.

Adding to 10013391 its reverse (19331001), we get a palindrome (29344392).

It can be divided in two parts, 10013 and 391, that added together give a square (10404 = 102²).

The spelling of 10013391 in words is "ten million, thirteen thousand, three hundred ninety-one".