212395753 has 6 divisors (see below), whose sum is σ = 213954234. Its totient is φ = 210848544.

The previous prime is 212395727. The next prime is 212395783. The reversal of 212395753 is 357593212.

It can be written as a sum of positive squares in only one way, i.e., 149621824 + 62773929 = 12232^2 + 7923^2 .

It is not a de Polignac number, because 212395753 - 2⁵ = 212395721 is a prime.

It is a super-2 number, since 2×212395753² = 90223911784874018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212395783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13825 + ... + 24817.

It is an arithmetic number, because the mean of its divisors is an integer number (35659039).

Almost surely, 2^212395753 is an apocalyptic number.

It is an amenable number.

212395753 is a deficient number, since it is larger than the sum of its proper divisors (1558481).

212395753 is an equidigital number, since it uses as much as digits as its factorization.

212395753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271 (or 11132 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 212395753 is about 14573.8036558752. The cubic root of 212395753 is about 596.6439980083.

The spelling of 212395753 in words is "two hundred twelve million, three hundred ninety-five thousand, seven hundred fifty-three".