12145995 has 24 divisors (see below), whose sum is σ = 21546096. Its totient is φ = 6326208.

The previous prime is 12145993. The next prime is 12146023. The reversal of 12145995 is 59954121.

12145995 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12145995 - 2¹ = 12145993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12145993) 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 23 ways as a sum of consecutive naturals, for example, 1204 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (897754).

Almost surely, 2^12145995 is an apocalyptic number.

12145995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12145995 is a deficient number, since it is larger than the sum of its proper divisors (9400101).

12145995 is a wasteful number, since it uses less digits than its factorization.

12145995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331 (or 6328 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 12145995 is about 3485.1104717067. The cubic root of 12145995 is about 229.8675671127.

The spelling of 12145995 in words is "twelve million, one hundred forty-five thousand, nine hundred ninety-five".