213695289 has 6 divisors (see below), whose sum is σ = 308670986. Its totient is φ = 142463520.

The previous prime is 213695269. The next prime is 213695291. The reversal of 213695289 is 982596312.

213695289 is a `hidden beast` number, since 2 + 1 + 369 + 5 + 289 = 666.

It can be written as a sum of positive squares in only one way, i.e., 207360000 + 6335289 = 14400^2 + 2517^2 .

It is not a de Polignac number, because 213695289 - 2¹² = 213691193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213695269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11871952 + ... + 11871969.

Almost surely, 2^213695289 is an apocalyptic number.

It is an amenable number.

213695289 is a deficient number, since it is larger than the sum of its proper divisors (94975697).

213695289 is a wasteful number, since it uses less digits than its factorization.

213695289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23743927 (or 23743924 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 213695289 is about 14618.3203207482. The cubic root of 213695289 is about 597.8583731525.

The spelling of 213695289 in words is "two hundred thirteen million, six hundred ninety-five thousand, two hundred eighty-nine".