12420754 has 4 divisors (see below), whose sum is σ = 18631134. Its totient is φ = 6210376.

The previous prime is 12420721. The next prime is 12420757. The reversal of 12420754 is 45702421.

12420754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45702421 = 43 ⋅1062847.

It can be written as a sum of positive squares in only one way, i.e., 9162729 + 3258025 = 3027^2 + 1805^2 .

It is not an unprimeable number, because it can be changed into a prime (12420757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105187 + ... + 3105190.

Almost surely, 2^12420754 is an apocalyptic number.

12420754 is a deficient number, since it is larger than the sum of its proper divisors (6210380).

12420754 is an equidigital number, since it uses as much as digits as its factorization.

12420754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210379.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 12420754 is about 3524.3090102884. The cubic root of 12420754 is about 231.5879651465.

The spelling of 12420754 in words is "twelve million, four hundred twenty thousand, seven hundred fifty-four".