213636536 has 8 divisors (see below), whose sum is σ = 400568520. Its totient is φ = 106818264.

The previous prime is 213636509. The next prime is 213636547. The reversal of 213636536 is 635636312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 213636496 and 213636505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13352276 + ... + 13352291.

It is an arithmetic number, because the mean of its divisors is an integer number (50071065).

Almost surely, 2^213636536 is an apocalyptic number.

It is an amenable number.

213636536 is a deficient number, since it is larger than the sum of its proper divisors (186931984).

213636536 is a wasteful number, since it uses less digits than its factorization.

213636536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26704573 (or 26704569 counting only the distinct ones).

The product of its digits is 58320, while the sum is 35.

The square root of 213636536 is about 14616.3106151997. The cubic root of 213636536 is about 597.8035767602.

The spelling of 213636536 in words is "two hundred thirteen million, six hundred thirty-six thousand, five hundred thirty-six".