16002361 has 4 divisors (see below), whose sum is σ = 16019172. Its totient is φ = 15985552.

The previous prime is 16002331. The next prime is 16002377. The reversal of 16002361 is 16320061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16320061 = 67 ⋅243583.

It can be written as a sum of positive squares in 2 ways, for example, as 4141225 + 11861136 = 2035^2 + 3444^2 .

It is a cyclic number.

It is not a de Polignac number, because 16002361 - 2¹³ = 15994169 is a prime.

It is a super-4 number, since 4×16002361⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16002331) 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, 6886 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (4004793).

Almost surely, 2^16002361 is an apocalyptic number.

It is an amenable number.

16002361 is a deficient number, since it is larger than the sum of its proper divisors (16811).

16002361 is a wasteful number, since it uses less digits than its factorization.

16002361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16810.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 16002361 is about 4000.2951141135. The cubic root of 16002361 is about 251.9966038427.

The spelling of 16002361 in words is "sixteen million, two thousand, three hundred sixty-one".