16129873 has 2 divisors, whose sum is σ = 16129874. Its totient is φ = 16129872.

The previous prime is 16129849. The next prime is 16129901. The reversal of 16129873 is 37892161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15586704 + 543169 = 3948^2 + 737^2 .

It is an emirp because it is prime and its reverse (37892161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16129873 - 2¹³ = 16121681 is a prime.

It is a super-2 number, since 2×16129873² = 520345605992258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16129823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064936 + 8064937.

It is an arithmetic number, because the mean of its divisors is an integer number (8064937).

Almost surely, 2^16129873 is an apocalyptic number.

It is an amenable number.

16129873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16129873 is an equidigital number, since it uses as much as digits as its factorization.

16129873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 16129873 is about 4016.2013146753. The cubic root of 16129873 is about 252.6641640679.

The spelling of 16129873 in words is "sixteen million, one hundred twenty-nine thousand, eight hundred seventy-three".