213382465 has 4 divisors (see below), whose sum is σ = 256058964. Its totient is φ = 170705968.

The previous prime is 213382447. The next prime is 213382489. The reversal of 213382465 is 564283312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121088016 + 92294449 = 11004^2 + 9607^2 .

It is a cyclic number.

It is not a de Polignac number, because 213382465 - 2¹⁷ = 213251393 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 213382465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21338242 + ... + 21338251.

It is an arithmetic number, because the mean of its divisors is an integer number (64014741).

Almost surely, 2^213382465 is an apocalyptic number.

It is an amenable number.

213382465 is a deficient number, since it is larger than the sum of its proper divisors (42676499).

213382465 is an equidigital number, since it uses as much as digits as its factorization.

213382465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42676498.

The product of its digits is 34560, while the sum is 34.

The square root of 213382465 is about 14607.6166776103. The cubic root of 213382465 is about 597.5664999542.

The spelling of 213382465 in words is "two hundred thirteen million, three hundred eighty-two thousand, four hundred sixty-five".