16040137 has 4 divisors (see below), whose sum is σ = 16048260. Its totient is φ = 16032016.

The previous prime is 16040111. The next prime is 16040159. The reversal of 16040137 is 73104061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10106041 + 5934096 = 3179^2 + 2436^2 .

It is a cyclic number.

It is not a de Polignac number, because 16040137 - 2²³ = 7651529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16040837) 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 3 ways as a sum of consecutive naturals, for example, 1023 + ... + 5755.

It is an arithmetic number, because the mean of its divisors is an integer number (4012065).

Almost surely, 2^16040137 is an apocalyptic number.

It is an amenable number.

16040137 is a deficient number, since it is larger than the sum of its proper divisors (8123).

16040137 is an equidigital number, since it uses as much as digits as its factorization.

16040137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16040137 is about 4005.0139824974. The cubic root of 16040137 is about 252.1947400809.

Adding to 16040137 its reverse (73104061), we get a palindrome (89144198).

The spelling of 16040137 in words is "sixteen million, forty thousand, one hundred thirty-seven".