421212753 has 48 divisors (see below), whose sum is σ = 669760000. Its totient is φ = 253528704.

The previous prime is 421212751. The next prime is 421212761. The reversal of 421212753 is 357212124.

It is not a de Polignac number, because 421212753 - 2¹ = 421212751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421212751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1839243 + ... + 1839471.

Almost surely, 2^421212753 is an apocalyptic number.

It is an amenable number.

421212753 is a deficient number, since it is larger than the sum of its proper divisors (248547247).

421212753 is a wasteful number, since it uses less digits than its factorization.

421212753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 421212753 is about 20523.4683472360. The cubic root of 421212753 is about 749.6073518057.

Adding to 421212753 its reverse (357212124), we get a palindrome (778424877).

The spelling of 421212753 in words is "four hundred twenty-one million, two hundred twelve thousand, seven hundred fifty-three".