16540929 has 20 divisors (see below), whose sum is σ = 25182036. Its totient is φ = 10816416.

The previous prime is 16540919. The next prime is 16540967. The reversal of 16540929 is 92904561.

It can be written as a sum of positive squares in 2 ways, for example, as 14837904 + 1703025 = 3852^2 + 1305^2 .

It is not a de Polignac number, because 16540929 - 2⁴ = 16540913 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16540893 and 16540902.

It is not an unprimeable number, because it can be changed into a prime (16540919) 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 19 ways as a sum of consecutive naturals, for example, 2367 + ... + 6219.

Almost surely, 2^16540929 is an apocalyptic number.

It is an amenable number.

16540929 is a deficient number, since it is larger than the sum of its proper divisors (8641107).

16540929 is an equidigital number, since it uses as much as digits as its factorization.

16540929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 16540929 is about 4067.0540935670. The cubic root of 16540929 is about 254.7924955504.

The spelling of 16540929 in words is "sixteen million, five hundred forty thousand, nine hundred twenty-nine".