10506431 has 4 divisors (see below), whose sum is σ = 11314632. Its totient is φ = 9698232.

The previous prime is 10506421. The next prime is 10506451. The reversal of 10506431 is 13460501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13460501 = 67 ⋅200903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10506431 is a prime.

It is a super-2 number, since 2×10506431² = 220770184715522, 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 (10506421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404081 + ... + 404106.

It is an arithmetic number, because the mean of its divisors is an integer number (2828658).

Almost surely, 2^10506431 is an apocalyptic number.

10506431 is a deficient number, since it is larger than the sum of its proper divisors (808201).

10506431 is an equidigital number, since it uses as much as digits as its factorization.

10506431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808200.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 10506431 is about 3241.3625221502. The cubic root of 10506431 is about 219.0206537237.

Adding to 10506431 its reverse (13460501), we get a palindrome (23966932).

The spelling of 10506431 in words is "ten million, five hundred six thousand, four hundred thirty-one".