12451330 has 16 divisors (see below), whose sum is σ = 22477824. Its totient is φ = 4966000.

The previous prime is 12451297. The next prime is 12451339. The reversal of 12451330 is 3315421.

It is a junction number, because it is equal to n+sod(n) for n = 12451298 and 12451307.

It is not an unprimeable number, because it can be changed into a prime (12451339) 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, 2205 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (1404864).

Almost surely, 2^12451330 is an apocalyptic number.

12451330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12451330 is a deficient number, since it is larger than the sum of its proper divisors (10026494).

12451330 is a wasteful number, since it uses less digits than its factorization.

12451330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12451330 is about 3528.6442155593. The cubic root of 12451330 is about 231.7778417334. Note that the first 3 decimals are identical.

Adding to 12451330 its reverse (3315421), we get a palindrome (15766751).

The spelling of 12451330 in words is "twelve million, four hundred fifty-one thousand, three hundred thirty".