105522031 has 4 divisors (see below), whose sum is σ = 107310600. Its totient is φ = 103733464.

The previous prime is 105522023. The next prime is 105522083. The reversal of 105522031 is 130225501.

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 105522031 - 2³ = 105522023 is a prime.

It is a super-2 number, since 2×105522031² = 22269798052729922, 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 (105522331) 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, 894196 + ... + 894313.

It is an arithmetic number, because the mean of its divisors is an integer number (26827650).

Almost surely, 2^105522031 is an apocalyptic number.

105522031 is a deficient number, since it is larger than the sum of its proper divisors (1788569).

105522031 is an equidigital number, since it uses as much as digits as its factorization.

105522031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788568.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 105522031 is about 10272.3916884044. The cubic root of 105522031 is about 472.5499416245.

Adding to 105522031 its reverse (130225501), we get a palindrome (235747532).

The spelling of 105522031 in words is "one hundred five million, five hundred twenty-two thousand, thirty-one".