104220631 has 4 divisors (see below), whose sum is σ = 106187112. Its totient is φ = 102254152.

The previous prime is 104220629. The next prime is 104220679. The reversal of 104220631 is 136022401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136022401 = 349 ⋅389749.

It is a cyclic number.

It is not a de Polignac number, because 104220631 - 2¹ = 104220629 is a prime.

It is a super-2 number, since 2×104220631² = 21723879852076322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104220599 and 104220608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104220031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983161 + ... + 983266.

It is an arithmetic number, because the mean of its divisors is an integer number (26546778).

Almost surely, 2^104220631 is an apocalyptic number.

104220631 is a deficient number, since it is larger than the sum of its proper divisors (1966481).

104220631 is an equidigital number, since it uses as much as digits as its factorization.

104220631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966480.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 104220631 is about 10208.8506209073. The cubic root of 104220631 is about 470.5992522246.

The spelling of 104220631 in words is "one hundred four million, two hundred twenty thousand, six hundred thirty-one".