104550021 has 24 divisors (see below), whose sum is σ = 158112864. Its totient is φ = 69031440.

The previous prime is 104550013. The next prime is 104550029. The reversal of 104550021 is 120055401.

It is an interprime number because it is at equal distance from previous prime (104550013) and next prime (104550029).

It is not a de Polignac number, because 104550021 - 2³ = 104550013 is a prime.

It is a super-2 number, since 2×104550021² = 21861413782200882, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 104549976 and 104550003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104550029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23991 + ... + 28011.

It is an arithmetic number, because the mean of its divisors is an integer number (6588036).

Almost surely, 2^104550021 is an apocalyptic number.

It is an amenable number.

104550021 is a deficient number, since it is larger than the sum of its proper divisors (53562843).

104550021 is an equidigital number, since it uses as much as digits as its factorization.

104550021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 104550021 is about 10224.9704645050. The cubic root of 104550021 is about 471.0945081966.

The spelling of 104550021 in words is "one hundred four million, five hundred fifty thousand, twenty-one".