16201530 has 48 divisors (see below), whose sum is σ = 43490304. Its totient is φ = 4180320.

The previous prime is 16201529. The next prime is 16201531. The reversal of 16201530 is 3510261.

16201530 is a `hidden beast` number, since 1 + 620 + 15 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (16201529) and next prime (16201531).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (16201531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114 + ... + 5693.

It is an arithmetic number, because the mean of its divisors is an integer number (906048).

Almost surely, 2^16201530 is an apocalyptic number.

16201530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16201530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21745152).

16201530 is an abundant number, since it is smaller than the sum of its proper divisors (27288774).

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

16201530 is a wasteful number, since it uses less digits than its factorization.

16201530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851 (or 5848 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 16201530 is about 4025.1124207903. The cubic root of 16201530 is about 253.0377650927.

Adding to 16201530 its reverse (3510261), we get a palindrome (19711791).

The spelling of 16201530 in words is "sixteen million, two hundred one thousand, five hundred thirty".