212523743 has 2 divisors, whose sum is σ = 212523744. Its totient is φ = 212523742.

The previous prime is 212523739. The next prime is 212523763. The reversal of 212523743 is 347325212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212523743 - 2² = 212523739 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212523713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106261871 + 106261872.

It is an arithmetic number, because the mean of its divisors is an integer number (106261872).

Almost surely, 2^212523743 is an apocalyptic number.

212523743 is a deficient number, since it is larger than the sum of its proper divisors (1).

212523743 is an equidigital number, since it uses as much as digits as its factorization.

212523743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 212523743 is about 14578.1940925480. The cubic root of 212523743 is about 596.7638201332.

Adding to 212523743 its reverse (347325212), we get a palindrome (559848955).

The spelling of 212523743 in words is "two hundred twelve million, five hundred twenty-three thousand, seven hundred forty-three".