16129747 has 2 divisors, whose sum is σ = 16129748. Its totient is φ = 16129746.

The previous prime is 16129741. The next prime is 16129777. The reversal of 16129747 is 74792161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16129747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16129741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064873 + 8064874.

It is an arithmetic number, because the mean of its divisors is an integer number (8064874).

Almost surely, 2^16129747 is an apocalyptic number.

16129747 is a deficient number, since it is larger than the sum of its proper divisors (1).

16129747 is an equidigital number, since it uses as much as digits as its factorization.

16129747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 16129747 is about 4016.1856281801. The cubic root of 16129747 is about 252.6635061630.

The spelling of 16129747 in words is "sixteen million, one hundred twenty-nine thousand, seven hundred forty-seven".