102656045 has 8 divisors (see below), whose sum is σ = 123391896. Its totient is φ = 81988416.

The previous prime is 102656041. The next prime is 102656051. The reversal of 102656045 is 540656201.

It can be written as a sum of positive squares in 4 ways, for example, as 11377129 + 91278916 = 3373^2 + 9554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102656045 - 2² = 102656041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102655999 and 102656017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102656041) by changing a digit.

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, 13682 + ... + 19811.

It is an arithmetic number, because the mean of its divisors is an integer number (15423987).

Almost surely, 2^102656045 is an apocalyptic number.

It is an amenable number.

102656045 is a deficient number, since it is larger than the sum of its proper divisors (20735851).

102656045 is an equidigital number, since it uses as much as digits as its factorization.

102656045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34111.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 102656045 is about 10131.9319480541. The cubic root of 102656045 is about 468.2324511231.

The spelling of 102656045 in words is "one hundred two million, six hundred fifty-six thousand, forty-five".