12147436 has 24 divisors (see below), whose sum is σ = 24383520. Its totient is φ = 5187072.

The previous prime is 12147397. The next prime is 12147463. The reversal of 12147436 is 63474121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9270 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (1015980).

Almost surely, 2^12147436 is an apocalyptic number.

It is an amenable number.

12147436 is an abundant number, since it is smaller than the sum of its proper divisors (12236084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12147436 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 12147436 = (24764131)₉.

12147436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1591 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 12147436 is about 3485.3172022070. The cubic root of 12147436 is about 229.8766572439.

The spelling of 12147436 in words is "twelve million, one hundred forty-seven thousand, four hundred thirty-six".