213219527049 has 27 divisors (see below), whose sum is σ = 325086702759. Its totient is φ = 134648341200.

The previous prime is 213219526969. The next prime is 213219527089. The reversal of 213219527049 is 940725912312.

The square root of 213219527049 is 461757.

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

It can be written as a sum of positive squares in only one way, i.e., 213114259449 + 105267600 = 461643^2 + 10260^2 .

It is not a de Polignac number, because 213219527049 - 2¹³ = 213219518857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213219526995 and 213219527013.

It is not an unprimeable number, because it can be changed into a prime (213219527089) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26316099 + ... + 26324199.

Almost surely, 2^213219527049 is an apocalyptic number.

213219527049 is the 461757-th square number.

213219527049 is the 230879-th centered octagonal number.

It is an amenable number.

213219527049 is a deficient number, since it is larger than the sum of its proper divisors (111867175710).

213219527049 is an frugal number, since it uses more digits than its factorization.

213219527049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 213219527049 in words is "two hundred thirteen billion, two hundred nineteen million, five hundred twenty-seven thousand, forty-nine".