213367314889 has 3 divisors (see below), whose sum is σ = 213367776807. Its totient is φ = 213366852972.

The previous prime is 213367314877. The next prime is 213367314931. The reversal of 213367314889 is 988413763312.

The square root of 213367314889 is 461917.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 14190765625 + 199176549264 = 119125^2 + 446292^2 .

It is a de Polignac number, because none of the positive numbers 2^k-213367314889 is a prime.

It is a super-2 number, since 2×213367314889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213367314859) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 230959 + ... + 692875.

It is an arithmetic number, because the mean of its divisors is an integer number (71122592269).

Almost surely, 2^213367314889 is an apocalyptic number.

213367314889 is the 461917-th square number.

213367314889 is the 230959-th centered octagonal number.

It is an amenable number.

213367314889 is a deficient number, since it is larger than the sum of its proper divisors (461918).

213367314889 is an frugal number, since it uses more digits than its factorization.

213367314889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923834 (or 461917 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The spelling of 213367314889 in words is "two hundred thirteen billion, three hundred sixty-seven million, three hundred fourteen thousand, eight hundred eighty-nine".