213773261 has 8 divisors (see below), whose sum is σ = 233460864. Its totient is φ = 194549040.

The previous prime is 213773251. The next prime is 213773269. The reversal of 213773261 is 162377312.

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

It is a cyclic number.

It is not a de Polignac number, because 213773261 - 2¹⁴ = 213756877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213773269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114881 + ... + 116726.

It is an arithmetic number, because the mean of its divisors is an integer number (29182608).

Almost surely, 2^213773261 is an apocalyptic number.

It is an amenable number.

213773261 is a deficient number, since it is larger than the sum of its proper divisors (19687603).

213773261 is a wasteful number, since it uses less digits than its factorization.

213773261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231691.

The product of its digits is 10584, while the sum is 32.

The square root of 213773261 is about 14620.9870049870. The cubic root of 213773261 is about 597.9310787711.

The spelling of 213773261 in words is "two hundred thirteen million, seven hundred seventy-three thousand, two hundred sixty-one".