12954820 has 12 divisors (see below), whose sum is σ = 27205164. Its totient is φ = 5181920.

The previous prime is 12954817. The next prime is 12954829. The reversal of 12954820 is 2845921.

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 8620096 = 2082^2 + 2936^2 .

It is a super-2 number, since 2×12954820² = 335654722464800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12954829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323851 + ... + 323890.

It is an arithmetic number, because the mean of its divisors is an integer number (2267097).

Almost surely, 2^12954820 is an apocalyptic number.

12954820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12954820 is an abundant number, since it is smaller than the sum of its proper divisors (14250344).

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

12954820 is a wasteful number, since it uses less digits than its factorization.

12954820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647750 (or 647748 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12954820 is about 3599.2804836523. The cubic root of 12954820 is about 234.8607595245.

The spelling of 12954820 in words is "twelve million, nine hundred fifty-four thousand, eight hundred twenty".