100656481 has 2 divisors, whose sum is σ = 100656482. Its totient is φ = 100656480.

The previous prime is 100656463. The next prime is 100656497. The reversal of 100656481 is 184656001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66830625 + 33825856 = 8175^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 100656481 - 2⁹ = 100655969 is a prime.

It is a super-2 number, since 2×100656481² = 20263454334606722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100656461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50328240 + 50328241.

It is an arithmetic number, because the mean of its divisors is an integer number (50328241).

Almost surely, 2^100656481 is an apocalyptic number.

It is an amenable number.

100656481 is a deficient number, since it is larger than the sum of its proper divisors (1).

100656481 is an equidigital number, since it uses as much as digits as its factorization.

100656481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 100656481 is about 10032.7703551910. The cubic root of 100656481 is about 465.1723737552.

The spelling of 100656481 in words is "one hundred million, six hundred fifty-six thousand, four hundred eighty-one".