13074391 has 4 divisors (see below), whose sum is σ = 14262984. Its totient is φ = 11885800.

The previous prime is 13074379. The next prime is 13074403. The reversal of 13074391 is 19347031.

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

It is an interprime number because it is at equal distance from previous prime (13074379) and next prime (13074403).

It is a cyclic number.

It is not a de Polignac number, because 13074391 - 2¹¹ = 13072343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13074301) 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, 594280 + ... + 594301.

It is an arithmetic number, because the mean of its divisors is an integer number (3565746).

Almost surely, 2^13074391 is an apocalyptic number.

13074391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13074391 is a deficient number, since it is larger than the sum of its proper divisors (1188593).

13074391 is a wasteful number, since it uses less digits than its factorization.

13074391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188592.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13074391 is about 3615.8527348331. The cubic root of 13074391 is about 235.5811240177.

The spelling of 13074391 in words is "thirteen million, seventy-four thousand, three hundred ninety-one".