12740147 has 6 divisors (see below), whose sum is σ = 14820228. Its totient is φ = 10920084.

The previous prime is 12740129. The next prime is 12740153. The reversal of 12740147 is 74104721.

It is not a de Polignac number, because 12740147 - 2²² = 8545843 is a prime.

It is a super-2 number, since 2×12740147² = 324622691163218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12740107) 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 5 ways as a sum of consecutive naturals, for example, 129953 + ... + 130050.

It is an arithmetic number, because the mean of its divisors is an integer number (2470038).

Almost surely, 2^12740147 is an apocalyptic number.

12740147 is a deficient number, since it is larger than the sum of its proper divisors (2080081).

12740147 is an equidigital number, since it uses as much as digits as its factorization.

12740147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260017 (or 260010 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 12740147 is about 3569.3342516497. The cubic root of 12740147 is about 233.5562425370.

Adding to 12740147 its reverse (74104721), we get a palindrome (86844868).

The spelling of 12740147 in words is "twelve million, seven hundred forty thousand, one hundred forty-seven".