102122656 has 12 divisors (see below), whose sum is σ = 201054042. Its totient is φ = 51061312.

The previous prime is 102122641. The next prime is 102122707. The reversal of 102122656 is 656221201.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 435600 = 10084^2 + 660^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 102122656.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595635 + ... + 1595698.

Almost surely, 2^102122656 is an apocalyptic number.

102122656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102122656 is a deficient number, since it is larger than the sum of its proper divisors (98931386).

102122656 is an equidigital number, since it uses as much as digits as its factorization.

102122656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191343 (or 3191335 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 102122656 is about 10105.5754907873. The cubic root of 102122656 is about 467.4200818521.

Adding to 102122656 its reverse (656221201), we get a palindrome (758343857).

The spelling of 102122656 in words is "one hundred two million, one hundred twenty-two thousand, six hundred fifty-six".