100885481 has 2 divisors, whose sum is σ = 100885482. Its totient is φ = 100885480.

The previous prime is 100885471. The next prime is 100885483. The reversal of 100885481 is 184588001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100000000 + 885481 = 10000^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 100885481 - 2⁶ = 100885417 is a prime.

It is a super-2 number, since 2×100885481² = 20355760553202722, which contains 22 as substring.

Together with 100885483, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_5809382 and since 100885481 and 5809382 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (100885483) 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 as a sum of consecutive naturals, namely, 50442740 + 50442741.

It is an arithmetic number, because the mean of its divisors is an integer number (50442741).

Almost surely, 2^100885481 is an apocalyptic number.

It is an amenable number.

100885481 is a deficient number, since it is larger than the sum of its proper divisors (1).

100885481 is an equidigital number, since it uses as much as digits as its factorization.

100885481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 35.

The square root of 100885481 is about 10044.1764719662. The cubic root of 100885481 is about 465.5248723098.

It can be divided in two parts, 100 and 885481, that multiplied together give a square (88548100 = 9410²).

The spelling of 100885481 in words is "one hundred million, eight hundred eighty-five thousand, four hundred eighty-one".