12147863 has 8 divisors (see below), whose sum is σ = 14951328. Its totient is φ = 9611424.

The previous prime is 12147853. The next prime is 12147871. The reversal of 12147863 is 36874121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12147863 - 2⁴ = 12147847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66656 + ... + 66837.

It is an arithmetic number, because the mean of its divisors is an integer number (1868916).

Almost surely, 2^12147863 is an apocalyptic number.

12147863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12147863 is a deficient number, since it is larger than the sum of its proper divisors (2803465).

12147863 is a wasteful number, since it uses less digits than its factorization.

12147863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133513.

The product of its digits is 8064, while the sum is 32.

The square root of 12147863 is about 3485.3784586469. The cubic root of 12147863 is about 229.8793507117.

The spelling of 12147863 in words is "twelve million, one hundred forty-seven thousand, eight hundred sixty-three".