212453005 has 8 divisors (see below), whose sum is σ = 255569400. Its totient is φ = 169545216.

The previous prime is 212452993. The next prime is 212453009. The reversal of 212453005 is 500354212.

212453005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 79673476 + 132779529 = 8926^2 + 11523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212453005 - 2⁵ = 212452973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212453009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49900 + ... + 53989.

It is an arithmetic number, because the mean of its divisors is an integer number (31946175).

Almost surely, 2^212453005 is an apocalyptic number.

It is an amenable number.

212453005 is a deficient number, since it is larger than the sum of its proper divisors (43116395).

212453005 is a wasteful number, since it uses less digits than its factorization.

212453005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104303.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 212453005 is about 14575.7677327817. The cubic root of 212453005 is about 596.6976023340.

The spelling of 212453005 in words is "two hundred twelve million, four hundred fifty-three thousand, five".