16301389 has 4 divisors (see below), whose sum is σ = 17555356. Its totient is φ = 15047424.

The previous prime is 16301377. The next prime is 16301399. The reversal of 16301389 is 98310361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98310361 = 7109 ⋅13829.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 13468900 = 1683^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 16301389 - 2⁵ = 16301357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16301389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16301309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626964 + ... + 626989.

It is an arithmetic number, because the mean of its divisors is an integer number (4388839).

Almost surely, 2^16301389 is an apocalyptic number.

It is an amenable number.

16301389 is a deficient number, since it is larger than the sum of its proper divisors (1253967).

16301389 is a wasteful number, since it uses less digits than its factorization.

16301389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253966.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16301389 is about 4037.4978637765. The cubic root of 16301389 is about 253.5565712684.

The spelling of 16301389 in words is "sixteen million, three hundred one thousand, three hundred eighty-nine".