13747147 has 2 divisors, whose sum is σ = 13747148. Its totient is φ = 13747146.

The previous prime is 13747121. The next prime is 13747159. The reversal of 13747147 is 74174731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13747147 - 2²³ = 5358539 is a prime.

It is a pancake number, because a pancake can be divided into 13747147 parts by 5243 straight cuts.

It is not a weakly prime, because it can be changed into another prime (13742147) 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 as a sum of consecutive naturals, namely, 6873573 + 6873574.

It is an arithmetic number, because the mean of its divisors is an integer number (6873574).

Almost surely, 2^13747147 is an apocalyptic number.

13747147 is a deficient number, since it is larger than the sum of its proper divisors (1).

13747147 is an equidigital number, since it uses as much as digits as its factorization.

13747147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 13747147 is about 3707.7145251489. The cubic root of 13747147 is about 239.5544221060.

The spelling of 13747147 in words is "thirteen million, seven hundred forty-seven thousand, one hundred forty-seven".