213627538 has 4 divisors (see below), whose sum is σ = 320441310. Its totient is φ = 106813768.

The previous prime is 213627527. The next prime is 213627581. The reversal of 213627538 is 835726312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 158080329 + 55547209 = 12573^2 + 7453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213627497 and 213627506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53406883 + ... + 53406886.

Almost surely, 2^213627538 is an apocalyptic number.

213627538 is a deficient number, since it is larger than the sum of its proper divisors (106813772).

213627538 is a wasteful number, since it uses less digits than its factorization.

213627538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106813771.

The product of its digits is 60480, while the sum is 37.

The square root of 213627538 is about 14616.0028051448. The cubic root of 213627538 is about 597.7951838261.

It can be divided in two parts, 21362 and 7538, that added together give a square (28900 = 170²).

The spelling of 213627538 in words is "two hundred thirteen million, six hundred twenty-seven thousand, five hundred thirty-eight".