16541493 has 12 divisors (see below), whose sum is σ = 23430240. Its totient is φ = 10378432.

The previous prime is 16541489. The next prime is 16541519. The reversal of 16541493 is 39414561.

It is not a de Polignac number, because 16541493 - 2² = 16541489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16541423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8673 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (1952520).

Almost surely, 2^16541493 is an apocalyptic number.

It is an amenable number.

16541493 is a deficient number, since it is larger than the sum of its proper divisors (6888747).

16541493 is a wasteful number, since it uses less digits than its factorization.

16541493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19116 (or 19099 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 16541493 is about 4067.1234306325. The cubic root of 16541493 is about 254.7953914243.

The spelling of 16541493 in words is "sixteen million, five hundred forty-one thousand, four hundred ninety-three".