104021136 has 30 divisors (see below), whose sum is σ = 291115110. Its totient is φ = 34673664.

The previous prime is 104021123. The next prime is 104021167. The reversal of 104021136 is 631120401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92160000 + 11861136 = 9600^2 + 3444^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361041 + ... + 361328.

It is an arithmetic number, because the mean of its divisors is an integer number (9703837).

Almost surely, 2^104021136 is an apocalyptic number.

104021136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

104021136 is an abundant number, since it is smaller than the sum of its proper divisors (187093974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104021136 is a wasteful number, since it uses less digits than its factorization.

104021136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722383 (or 722374 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 104021136 is about 10199.0752521981. The cubic root of 104021136 is about 470.2987929567.

Adding to 104021136 its reverse (631120401), we get a palindrome (735141537).

The spelling of 104021136 in words is "one hundred four million, twenty-one thousand, one hundred thirty-six".