212434080545 has 8 divisors (see below), whose sum is σ = 269916243624. Its totient is φ = 159950366464.

The previous prime is 212434080527. The next prime is 212434080611. The reversal of 212434080545 is 545080434212.

It can be written as a sum of positive squares in 4 ways, for example, as 29235528256 + 183198552289 = 170984^2 + 428017^2 .

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 212434080545 - 2²⁰ = 212433031969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212434080499 and 212434080508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249612154 + ... + 1249612323.

It is an arithmetic number, because the mean of its divisors is an integer number (33739530453).

Almost surely, 2^212434080545 is an apocalyptic number.

It is an amenable number.

212434080545 is a deficient number, since it is larger than the sum of its proper divisors (57482163079).

212434080545 is a wasteful number, since it uses less digits than its factorization.

212434080545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499224499.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 212434080545 in words is "two hundred twelve billion, four hundred thirty-four million, eighty thousand, five hundred forty-five".