16037121 has 8 divisors (see below), whose sum is σ = 22508320. Its totient is φ = 10128672.

The previous prime is 16037117. The next prime is 16037123. The reversal of 16037121 is 12173061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16037121 - 2² = 16037117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16037123) 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 7 ways as a sum of consecutive naturals, for example, 140620 + ... + 140733.

It is an arithmetic number, because the mean of its divisors is an integer number (2813540).

Almost surely, 2^16037121 is an apocalyptic number.

It is an amenable number.

16037121 is a deficient number, since it is larger than the sum of its proper divisors (6471199).

16037121 is a wasteful number, since it uses less digits than its factorization.

16037121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281375.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 16037121 is about 4004.6374367725. The cubic root of 16037121 is about 252.1789325058.

The spelling of 16037121 in words is "sixteen million, thirty-seven thousand, one hundred twenty-one".