12361287 has 4 divisors (see below), whose sum is σ = 16481720. Its totient is φ = 8240856.

The previous prime is 12361277. The next prime is 12361303. The reversal of 12361287 is 78216321.

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

It is not a de Polignac number, because 12361287 - 2¹¹ = 12359239 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 (12361277) 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, 2060212 + ... + 2060217.

It is an arithmetic number, because the mean of its divisors is an integer number (4120430).

Almost surely, 2^12361287 is an apocalyptic number.

12361287 is a deficient number, since it is larger than the sum of its proper divisors (4120433).

12361287 is an equidigital number, since it uses as much as digits as its factorization.

12361287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120432.

The product of its digits is 4032, while the sum is 30.

The square root of 12361287 is about 3515.8621986648. The cubic root of 12361287 is about 231.2177815353.

The spelling of 12361287 in words is "twelve million, three hundred sixty-one thousand, two hundred eighty-seven".