104143431 has 16 divisors (see below), whose sum is σ = 158837504. Its totient is φ = 59457024.

The previous prime is 104143397. The next prime is 104143441. The reversal of 104143431 is 134341401.

It is not a de Polignac number, because 104143431 - 2⁶ = 104143367 is a prime.

It is a super-2 number, since 2×104143431² = 21691708440903522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 104143398 and 104143407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104143441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43200 + ... + 45546.

It is an arithmetic number, because the mean of its divisors is an integer number (9927344).

Almost surely, 2^104143431 is an apocalyptic number.

104143431 is a deficient number, since it is larger than the sum of its proper divisors (54694073).

104143431 is a wasteful number, since it uses less digits than its factorization.

104143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 104143431 is about 10205.0688875676. The cubic root of 104143431 is about 470.4830268797.

Adding to 104143431 its reverse (134341401), we get a palindrome (238484832).

The spelling of 104143431 in words is "one hundred four million, one hundred forty-three thousand, four hundred thirty-one".