16145530 has 8 divisors (see below), whose sum is σ = 29061972. Its totient is φ = 6458208.

The previous prime is 16145477. The next prime is 16145531. The reversal of 16145530 is 3554161.

It can be written as a sum of positive squares in 2 ways, for example, as 15421329 + 724201 = 3927^2 + 851^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16145495 and 16145504.

It is not an unprimeable number, because it can be changed into a prime (16145531) 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, 807267 + ... + 807286.

Almost surely, 2^16145530 is an apocalyptic number.

16145530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16145530 is a deficient number, since it is larger than the sum of its proper divisors (12916442).

16145530 is a wasteful number, since it uses less digits than its factorization.

16145530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614560.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 16145530 is about 4018.1500718614. The cubic root of 16145530 is about 252.7458899338.

Adding to 16145530 its reverse (3554161), we get a palindrome (19699691).

The spelling of 16145530 in words is "sixteen million, one hundred forty-five thousand, five hundred thirty".