104220531 has 12 divisors (see below), whose sum is σ = 150777120. Its totient is φ = 69371280.

The previous prime is 104220517. The next prime is 104220547. The reversal of 104220531 is 135022401.

It is not a de Polignac number, because 104220531 - 2¹⁴ = 104204147 is a prime.

It is a super-2 number, since 2×104220531² = 21723838163843922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104220511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2811 + ... + 14708.

It is an arithmetic number, because the mean of its divisors is an integer number (12564760).

Almost surely, 2^104220531 is an apocalyptic number.

104220531 is a deficient number, since it is larger than the sum of its proper divisors (46556589).

104220531 is a wasteful number, since it uses less digits than its factorization.

104220531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18186 (or 18183 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 104220531 is about 10208.8457231952. The cubic root of 104220531 is about 470.5991017108.

Adding to 104220531 its reverse (135022401), we get a palindrome (239242932).

The spelling of 104220531 in words is "one hundred four million, two hundred twenty thousand, five hundred thirty-one".