12600381 has 4 divisors (see below), whose sum is σ = 16800512. Its totient is φ = 8400252.

The previous prime is 12600373. The next prime is 12600403. The reversal of 12600381 is 18300621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18300621 = 3 ⋅6100207.

It is not a de Polignac number, because 12600381 - 2³ = 12600373 is a prime.

It is a super-2 number, since 2×12600381² = 317539202690322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12600331) 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, 2100061 + ... + 2100066.

It is an arithmetic number, because the mean of its divisors is an integer number (4200128).

Almost surely, 2^12600381 is an apocalyptic number.

It is an amenable number.

12600381 is a deficient number, since it is larger than the sum of its proper divisors (4200131).

12600381 is an equidigital number, since it uses as much as digits as its factorization.

12600381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200130.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12600381 is about 3549.7015367493. The cubic root of 12600381 is about 232.6990225562.

The spelling of 12600381 in words is "twelve million, six hundred thousand, three hundred eighty-one".