105112531147 has 8 divisors (see below), whose sum is σ = 113220851744. Its totient is φ = 97007459328.

The previous prime is 105112531129. The next prime is 105112531163. The reversal of 105112531147 is 741135211501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-105112531147 is a prime.

It is a super-2 number, since 2×105112531147² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105112531187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744783 + ... + 874600.

It is an arithmetic number, because the mean of its divisors is an integer number (14152606468).

Almost surely, 2^105112531147 is an apocalyptic number.

105112531147 is a deficient number, since it is larger than the sum of its proper divisors (8108320597).

105112531147 is a wasteful number, since it uses less digits than its factorization.

105112531147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624389.

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 105112531147 its reverse (741135211501), we get a palindrome (846247742648).

The spelling of 105112531147 in words is "one hundred five billion, one hundred twelve million, five hundred thirty-one thousand, one hundred forty-seven".