102206536 has 8 divisors (see below), whose sum is σ = 191637270. Its totient is φ = 51103264.

The previous prime is 102206519. The next prime is 102206539. The reversal of 102206536 is 635602201.

It can be written as a sum of positive squares in only one way, i.e., 81902500 + 20304036 = 9050^2 + 4506^2 .

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

It is a super-2 number, since 2×102206536² = 20892352002238592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102206536.

It is not an unprimeable number, because it can be changed into a prime (102206539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387901 + ... + 6387916.

Almost surely, 2^102206536 is an apocalyptic number.

It is an amenable number.

102206536 is a deficient number, since it is larger than the sum of its proper divisors (89430734).

102206536 is a wasteful number, since it uses less digits than its factorization.

102206536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775823 (or 12775819 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 102206536 is about 10109.7248231591. The cubic root of 102206536 is about 467.5480210330.

Adding to 102206536 its reverse (635602201), we get a palindrome (737808737).

The spelling of 102206536 in words is "one hundred two million, two hundred six thousand, five hundred thirty-six".