12620530 has 16 divisors (see below), whose sum is σ = 24464664. Its totient is φ = 4659840.

The previous prime is 12620527. The next prime is 12620533. The reversal of 12620530 is 3502621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12620527) and next prime (12620533).

It can be written as a sum of positive squares in 4 ways, for example, as 10751841 + 1868689 = 3279^2 + 1367^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12620498 and 12620507.

It is not an unprimeable number, because it can be changed into a prime (12620533) 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, 48411 + ... + 48670.

Almost surely, 2^12620530 is an apocalyptic number.

12620530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12620530 is a deficient number, since it is larger than the sum of its proper divisors (11844134).

12620530 is a wasteful number, since it uses less digits than its factorization.

12620530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97101.

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

The square root of 12620530 is about 3552.5385289959. The cubic root of 12620530 is about 232.8229911793.

The spelling of 12620530 in words is "twelve million, six hundred twenty thousand, five hundred thirty".