212373345 has 32 divisors (see below), whose sum is σ = 351977472. Its totient is φ = 109271232.

The previous prime is 212373341. The next prime is 212373353. The reversal of 212373345 is 543373212.

It is not a de Polignac number, because 212373345 - 2² = 212373341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212373341) 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 31 ways as a sum of consecutive naturals, for example, 51552 + ... + 55518.

It is an arithmetic number, because the mean of its divisors is an integer number (10999296).

Almost surely, 2^212373345 is an apocalyptic number.

It is an amenable number.

212373345 is a deficient number, since it is larger than the sum of its proper divisors (139604127).

212373345 is a wasteful number, since it uses less digits than its factorization.

212373345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101.

The product of its digits is 15120, while the sum is 30.

The square root of 212373345 is about 14573.0348589441. The cubic root of 212373345 is about 596.6230150575.

The spelling of 212373345 in words is "two hundred twelve million, three hundred seventy-three thousand, three hundred forty-five".