213140610277 has 24 divisors (see below), whose sum is σ = 249917770872. Its totient is φ = 181238601600.

The previous prime is 213140610271. The next prime is 213140610289. The reversal of 213140610277 is 772016041312.

It can be written as a sum of positive squares in 4 ways, for example, as 11670696961 + 201469913316 = 108031^2 + 448854^2 .

It is a de Polignac number, because none of the positive numbers 2^k-213140610277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213140610271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3880627 + ... + 3935167.

It is an arithmetic number, because the mean of its divisors is an integer number (10413240453).

Almost surely, 2^213140610277 is an apocalyptic number.

It is an amenable number.

213140610277 is a deficient number, since it is larger than the sum of its proper divisors (36777160595).

213140610277 is a wasteful number, since it uses less digits than its factorization.

213140610277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55189 (or 55182 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 213140610277 its reverse (772016041312), we get a palindrome (985156651589).

The spelling of 213140610277 in words is "two hundred thirteen billion, one hundred forty million, six hundred ten thousand, two hundred seventy-seven".