105432031 has 4 divisors (see below), whose sum is σ = 105453864. Its totient is φ = 105410200.

The previous prime is 105432013. The next prime is 105432037. The reversal of 105432031 is 130234501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105432031 - 2⁷ = 105431903 is a prime.

It is a super-2 number, since 2×105432031² = 22231826321569922, 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 (105432037) 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, 100 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (26363466).

Almost surely, 2^105432031 is an apocalyptic number.

105432031 is a deficient number, since it is larger than the sum of its proper divisors (21833).

105432031 is an equidigital number, since it uses as much as digits as its factorization.

105432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21832.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 105432031 is about 10268.0100798548. The cubic root of 105432031 is about 472.4155570754.

Adding to 105432031 its reverse (130234501), we get a palindrome (235666532).

The spelling of 105432031 in words is "one hundred five million, four hundred thirty-two thousand, thirty-one".