212575153543 has 4 divisors (see below), whose sum is σ = 212947439848. Its totient is φ = 212202867240.

The previous prime is 212575153541. The next prime is 212575153621. The reversal of 212575153543 is 345351575212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212575153543 - 2¹ = 212575153541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212575153543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212575153541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186142296 + ... + 186143437.

It is an arithmetic number, because the mean of its divisors is an integer number (53236859962).

Almost surely, 2^212575153543 is an apocalyptic number.

212575153543 is a deficient number, since it is larger than the sum of its proper divisors (372286305).

212575153543 is an equidigital number, since it uses as much as digits as its factorization.

212575153543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372286304.

The product of its digits is 630000, while the sum is 43.

The spelling of 212575153543 in words is "two hundred twelve billion, five hundred seventy-five million, one hundred fifty-three thousand, five hundred forty-three".