16365138 has 16 divisors (see below), whose sum is σ = 32784960. Its totient is φ = 5445936.

The previous prime is 16365133. The next prime is 16365143. The reversal of 16365138 is 83156361.

It is an interprime number because it is at equal distance from previous prime (16365133) and next prime (16365143).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16365099 and 16365108.

It is not an unprimeable number, because it can be changed into a prime (16365133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331 + ... + 6177.

It is an arithmetic number, because the mean of its divisors is an integer number (2049060).

Almost surely, 2^16365138 is an apocalyptic number.

16365138 is an abundant number, since it is smaller than the sum of its proper divisors (16419822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16365138 is a wasteful number, since it uses less digits than its factorization.

16365138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561.

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

The square root of 16365138 is about 4045.3847777436. The cubic root of 16365138 is about 253.8866648773.

The spelling of 16365138 in words is "sixteen million, three hundred sixty-five thousand, one hundred thirty-eight".