212161753 has 2 divisors, whose sum is σ = 212161754. Its totient is φ = 212161752.

The previous prime is 212161723. The next prime is 212161813. The reversal of 212161753 is 357161212.

It is a happy number.

212161753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141063129 + 71098624 = 11877^2 + 8432^2 .

It is a cyclic number.

It is not a de Polignac number, because 212161753 - 2²¹ = 210064601 is a prime.

It is not a weakly prime, because it can be changed into another prime (212161723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106080876 + 106080877.

It is an arithmetic number, because the mean of its divisors is an integer number (106080877).

Almost surely, 2^212161753 is an apocalyptic number.

It is an amenable number.

212161753 is a deficient number, since it is larger than the sum of its proper divisors (1).

212161753 is an equidigital number, since it uses as much as digits as its factorization.

212161753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 212161753 is about 14565.7733402659. The cubic root of 212161753 is about 596.4248065588.

The spelling of 212161753 in words is "two hundred twelve million, one hundred sixty-one thousand, seven hundred fifty-three".