105245031 has 16 divisors (see below), whose sum is σ = 149852160. Its totient is φ = 65556960.

The previous prime is 105245003. The next prime is 105245039. The reversal of 105245031 is 130542501.

It is not a de Polignac number, because 105245031 - 2¹⁷ = 105113959 is a prime.

It is a super-2 number, since 2×105245031² = 22153033100381922, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 105244989 and 105245007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105245039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16815 + ... + 22208.

It is an arithmetic number, because the mean of its divisors is an integer number (9365760).

Almost surely, 2^105245031 is an apocalyptic number.

105245031 is a deficient number, since it is larger than the sum of its proper divisors (44607129).

105245031 is a wasteful number, since it uses less digits than its factorization.

105245031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39086.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 105245031 is about 10258.9000872413. The cubic root of 105245031 is about 472.1360911197.

Adding to 105245031 its reverse (130542501), we get a palindrome (235787532).

The spelling of 105245031 in words is "one hundred five million, two hundred forty-five thousand, thirty-one".