212575426 has 12 divisors (see below), whose sum is σ = 370922598. Its totient is φ = 91103712.

The previous prime is 212575393. The next prime is 212575427. The reversal of 212575426 is 624575212.

It can be written as a sum of positive squares in only one way, i.e., 172265625 + 40309801 = 13125^2 + 6349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212575391 and 212575400.

It is not an unprimeable number, because it can be changed into a prime (212575427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1084471 + ... + 1084666.

Almost surely, 2^212575426 is an apocalyptic number.

212575426 is a deficient number, since it is larger than the sum of its proper divisors (158347172).

212575426 is a wasteful number, since it uses less digits than its factorization.

212575426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169153 (or 2169146 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 212575426 is about 14579.9665980413. The cubic root of 212575426 is about 596.8121912693.

The spelling of 212575426 in words is "two hundred twelve million, five hundred seventy-five thousand, four hundred twenty-six".