102207256 has 32 divisors (see below), whose sum is σ = 195048000. Its totient is φ = 50203296.

The previous prime is 102207221. The next prime is 102207263. The reversal of 102207256 is 652702201.

It is a self number, because there is not a number n which added to its sum of digits gives 102207256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118555 + ... + 119413.

It is an arithmetic number, because the mean of its divisors is an integer number (6095250).

Almost surely, 2^102207256 is an apocalyptic number.

It is an amenable number.

102207256 is a deficient number, since it is larger than the sum of its proper divisors (92840744).

102207256 is a wasteful number, since it uses less digits than its factorization.

102207256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 102207256 is about 10109.7604323743. The cubic root of 102207256 is about 467.5491189204.

Adding to 102207256 its reverse (652702201), we get a palindrome (754909457).

The spelling of 102207256 in words is "one hundred two million, two hundred seven thousand, two hundred fifty-six".