12197854 has 4 divisors (see below), whose sum is σ = 18296784. Its totient is φ = 6098926.

The previous prime is 12197851. The next prime is 12197879. The reversal of 12197854 is 45879121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3049462 + ... + 3049465.

It is an arithmetic number, because the mean of its divisors is an integer number (4574196).

Almost surely, 2^12197854 is an apocalyptic number.

12197854 is a deficient number, since it is larger than the sum of its proper divisors (6098930).

12197854 is an equidigital number, since it uses as much as digits as its factorization.

12197854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098929.

The product of its digits is 20160, while the sum is 37.

The square root of 12197854 is about 3492.5426267978. The cubic root of 12197854 is about 230.1942530312.

The spelling of 12197854 in words is "twelve million, one hundred ninety-seven thousand, eight hundred fifty-four".