213454465 has 16 divisors (see below), whose sum is σ = 309958272. Its totient is φ = 137758464.

The previous prime is 213454441. The next prime is 213454469. The reversal of 213454465 is 564454312.

It is a cyclic number.

It is not a de Polignac number, because 213454465 - 2⁹ = 213453953 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 213454465.

It is not an unprimeable number, because it can be changed into a prime (213454469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178779 + ... + 179968.

It is an arithmetic number, because the mean of its divisors is an integer number (19372392).

Almost surely, 2^213454465 is an apocalyptic number.

It is an amenable number.

213454465 is a deficient number, since it is larger than the sum of its proper divisors (96503807).

213454465 is a wasteful number, since it uses less digits than its factorization.

213454465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358776.

The product of its digits is 57600, while the sum is 34.

The square root of 213454465 is about 14610.0809374897. The cubic root of 213454465 is about 597.6337031485.

The spelling of 213454465 in words is "two hundred thirteen million, four hundred fifty-four thousand, four hundred sixty-five".