212331753 has 16 divisors (see below), whose sum is σ = 315402240. Its totient is φ = 141178032.

The previous prime is 212331733. The next prime is 212331767. The reversal of 212331753 is 357133212.

It is not a de Polignac number, because 212331753 - 2⁶ = 212331689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212331703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75 + ... + 20607.

It is an arithmetic number, because the mean of its divisors is an integer number (19712640).

Almost surely, 2^212331753 is an apocalyptic number.

It is an amenable number.

212331753 is a deficient number, since it is larger than the sum of its proper divisors (103070487).

212331753 is a wasteful number, since it uses less digits than its factorization.

212331753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20925 (or 20919 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 212331753 is about 14571.6077699065. The cubic root of 212331753 is about 596.5840642112.

Adding to 212331753 its reverse (357133212), we get a palindrome (569464965).

The spelling of 212331753 in words is "two hundred twelve million, three hundred thirty-one thousand, seven hundred fifty-three".