212466541 has 4 divisors (see below), whose sum is σ = 242818912. Its totient is φ = 182114172.

The previous prime is 212466523. The next prime is 212466547. The reversal of 212466541 is 145664212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212466541 - 2⁵ = 212466509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212466547) 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, 15176175 + ... + 15176188.

It is an arithmetic number, because the mean of its divisors is an integer number (60704728).

Almost surely, 2^212466541 is an apocalyptic number.

It is an amenable number.

212466541 is a deficient number, since it is larger than the sum of its proper divisors (30352371).

212466541 is an equidigital number, since it uses as much as digits as its factorization.

212466541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30352370.

The product of its digits is 11520, while the sum is 31.

The square root of 212466541 is about 14576.2320577027. The cubic root of 212466541 is about 596.7102745126.

The spelling of 212466541 in words is "two hundred twelve million, four hundred sixty-six thousand, five hundred forty-one".