115143105 has 64 divisors (see below), whose sum is σ = 231745536. Its totient is φ = 47424000.

The previous prime is 115143103. The next prime is 115143107. The reversal of 115143105 is 501341511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115143103) and next prime (115143107).

It is not a de Polignac number, because 115143105 - 2¹ = 115143103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (115143103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150925 + ... + 151685.

It is an arithmetic number, because the mean of its divisors is an integer number (3621024).

Almost surely, 2^115143105 is an apocalyptic number.

115143105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115143105 is an abundant number, since it is smaller than the sum of its proper divisors (116602431).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115143105 is a wasteful number, since it uses less digits than its factorization.

115143105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 115143105 is about 10730.4755253437. The cubic root of 115143105 is about 486.4960430101.

Adding to 115143105 its reverse (501341511), we get a palindrome (616484616).

The spelling of 115143105 in words is "one hundred fifteen million, one hundred forty-three thousand, one hundred five".