16537361 has 4 divisors (see below), whose sum is σ = 16648500. Its totient is φ = 16426224.

The previous prime is 16537349. The next prime is 16537363. The reversal of 16537361 is 16373561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16373561 = 523 ⋅31307.

It can be written as a sum of positive squares in 2 ways, for example, as 10627600 + 5909761 = 3260^2 + 2431^2 .

It is a cyclic number.

It is not a de Polignac number, because 16537361 - 2²² = 12343057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16537363) 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 in 3 ways as a sum of consecutive naturals, for example, 55346 + ... + 55643.

It is an arithmetic number, because the mean of its divisors is an integer number (4162125).

Almost surely, 2^16537361 is an apocalyptic number.

It is an amenable number.

16537361 is a deficient number, since it is larger than the sum of its proper divisors (111139).

16537361 is a wasteful number, since it uses less digits than its factorization.

16537361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111138.

The product of its digits is 11340, while the sum is 32.

The square root of 16537361 is about 4066.6154231744. The cubic root of 16537361 is about 254.7741740281.

The spelling of 16537361 in words is "sixteen million, five hundred thirty-seven thousand, three hundred sixty-one".