212941923 has 4 divisors (see below), whose sum is σ = 283922568. Its totient is φ = 141961280.

The previous prime is 212941901. The next prime is 212941933. The reversal of 212941923 is 329149212.

212941923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212941923 - 2¹² = 212937827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212941933) 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, 35490318 + ... + 35490323.

It is an arithmetic number, because the mean of its divisors is an integer number (70980642).

Almost surely, 2^212941923 is an apocalyptic number.

212941923 is a deficient number, since it is larger than the sum of its proper divisors (70980645).

212941923 is an equidigital number, since it uses as much as digits as its factorization.

212941923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70980644.

The product of its digits is 7776, while the sum is 33.

The square root of 212941923 is about 14592.5296984450. The cubic root of 212941923 is about 597.1549782970.

The spelling of 212941923 in words is "two hundred twelve million, nine hundred forty-one thousand, nine hundred twenty-three".