12361995 has 12 divisors (see below), whose sum is σ = 21427536. Its totient is φ = 6593040.

The previous prime is 12361961. The next prime is 12361997. The reversal of 12361995 is 59916321.

It is not a de Polignac number, because 12361995 - 2⁹ = 12361483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12361997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137311 + ... + 137400.

It is an arithmetic number, because the mean of its divisors is an integer number (1785628).

Almost surely, 2^12361995 is an apocalyptic number.

12361995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12361995 is a deficient number, since it is larger than the sum of its proper divisors (9065541).

12361995 is a wasteful number, since it uses less digits than its factorization.

12361995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274722 (or 274719 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 12361995 is about 3515.9628837631. The cubic root of 12361995 is about 231.2221958293. Note that the first 3 decimals are identical.

The spelling of 12361995 in words is "twelve million, three hundred sixty-one thousand, nine hundred ninety-five".