102804881 has 4 divisors (see below), whose sum is σ = 102870000. Its totient is φ = 102739764.

The previous prime is 102804841. The next prime is 102804901. The reversal of 102804881 is 188408201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102804881 is a prime.

It is a super-2 number, since 2×102804881² = 21137687114848322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102804811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30131 + ... + 33368.

It is an arithmetic number, because the mean of its divisors is an integer number (25717500).

Almost surely, 2^102804881 is an apocalyptic number.

It is an amenable number.

102804881 is a deficient number, since it is larger than the sum of its proper divisors (65119).

102804881 is an equidigital number, since it uses as much as digits as its factorization.

102804881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65118.

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 102804881 is about 10139.2741850687. The cubic root of 102804881 is about 468.4586309915.

The spelling of 102804881 in words is "one hundred two million, eight hundred four thousand, eight hundred eighty-one".