214946965 has 4 divisors (see below), whose sum is σ = 257936364. Its totient is φ = 171957568.

The previous prime is 214946947. The next prime is 214946989. The reversal of 214946965 is 569649412.

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 30041361 + 184905604 = 5481^2 + 13598^2 .

It is a cyclic number.

It is not a de Polignac number, because 214946965 - 2²³ = 206558357 is a prime.

It is a super-2 number, since 2×214946965² = 92404395525422450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 21494692 + ... + 21494701.

It is an arithmetic number, because the mean of its divisors is an integer number (64484091).

Almost surely, 2^214946965 is an apocalyptic number.

It is an amenable number.

214946965 is a deficient number, since it is larger than the sum of its proper divisors (42989399).

214946965 is an equidigital number, since it uses as much as digits as its factorization.

214946965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42989398.

The product of its digits is 466560, while the sum is 46.

The square root of 214946965 is about 14661.0697085854. The cubic root of 214946965 is about 599.0233788068.

The spelling of 214946965 in words is "two hundred fourteen million, nine hundred forty-six thousand, nine hundred sixty-five".