212465 has 8 divisors (see below), whose sum is σ = 278208. Its totient is φ = 154480.

The previous prime is 212461. The next prime is 212467. The reversal of 212465 is 564212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212465 - 2² = 212461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2²¹²⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

212465 is a deficient number, since it is larger than the sum of its proper divisors (65743).

212465 is a wasteful number, since it uses less digits than its factorization.

212465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879.

The product of its digits is 480, while the sum is 20.

The square root of 212465 is about 460.9392584712. The cubic root of 212465 is about 59.6708831881.

Adding to 212465 its reverse (564212), we get a palindrome (776677).

The spelling of 212465 in words is "two hundred twelve thousand, four hundred sixty-five".