105204431 has 8 divisors (see below), whose sum is σ = 111774720. Its totient is φ = 98830368.

The previous prime is 105204427. The next prime is 105204439. The reversal of 105204431 is 134402501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105204431 - 2² = 105204427 is a prime.

It is a super-2 number, since 2×105204431² = 22135944604067522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105204439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47951 + ... + 50096.

It is an arithmetic number, because the mean of its divisors is an integer number (13971840).

Almost surely, 2^105204431 is an apocalyptic number.

105204431 is a deficient number, since it is larger than the sum of its proper divisors (6570289).

105204431 is an equidigital number, since it uses as much as digits as its factorization.

105204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98113.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 105204431 is about 10256.9211267319. The cubic root of 105204431 is about 472.0753718929.

Adding to 105204431 its reverse (134402501), we get a palindrome (239606932).

The spelling of 105204431 in words is "one hundred five million, two hundred four thousand, four hundred thirty-one".