12051630 has 48 divisors (see below), whose sum is σ = 31505760. Its totient is φ = 3196224.

The previous prime is 12051629. The next prime is 12051631. The reversal of 12051630 is 3615021.

12051630 is a `hidden beast` number, since 120 + 516 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (12051629) and next prime (12051631).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051631) 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, 32124 + ... + 32496.

It is an arithmetic number, because the mean of its divisors is an integer number (656370).

Almost surely, 2^12051630 is an apocalyptic number.

12051630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12051630 is an abundant number, since it is smaller than the sum of its proper divisors (19454130).

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

12051630 is a wasteful number, since it uses less digits than its factorization.

12051630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 742 counting only the distinct ones).

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

The square root of 12051630 is about 3471.5457652176. The cubic root of 12051630 is about 229.2707209375.

Adding to 12051630 its reverse (3615021), we get a palindrome (15666651).

The spelling of 12051630 in words is "twelve million, fifty-one thousand, six hundred thirty".