104140431 has 8 divisors (see below), whose sum is σ = 154282160. Its totient is φ = 69426936.

The previous prime is 104140429. The next prime is 104140433. The reversal of 104140431 is 134041401.

It is an interprime number because it is at equal distance from previous prime (104140429) and next prime (104140433).

It is not a de Polignac number, because 104140431 - 2¹ = 104140429 is a prime.

It is a super-2 number, since 2×104140431² = 21690458737731522, 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 (104140433) 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, 1928500 + ... + 1928553.

It is an arithmetic number, because the mean of its divisors is an integer number (19285270).

Almost surely, 2^104140431 is an apocalyptic number.

104140431 is a deficient number, since it is larger than the sum of its proper divisors (50141729).

104140431 is an equidigital number, since it uses as much as digits as its factorization.

104140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857062 (or 3857056 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 104140431 is about 10204.9219007301. The cubic root of 104140431 is about 470.4785091916.

Adding to 104140431 its reverse (134041401), we get a palindrome (238181832).

The spelling of 104140431 in words is "one hundred four million, one hundred forty thousand, four hundred thirty-one".