115512101 has 16 divisors (see below), whose sum is σ = 120528000. Its totient is φ = 110644800.

The previous prime is 115512083. The next prime is 115512139. The reversal of 115512101 is 101215511.

It is a cyclic number.

It is not a de Polignac number, because 115512101 - 2¹⁴ = 115495717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115512101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115512151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645230 + ... + 645408.

It is an arithmetic number, because the mean of its divisors is an integer number (7533000).

Almost surely, 2^115512101 is an apocalyptic number.

It is an amenable number.

115512101 is a deficient number, since it is larger than the sum of its proper divisors (5015899).

115512101 is a wasteful number, since it uses less digits than its factorization.

115512101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 115512101 is about 10747.6556048284. The cubic root of 115512101 is about 487.0151757657.

Adding to 115512101 its reverse (101215511), we get a palindrome (216727612).

The spelling of 115512101 in words is "one hundred fifteen million, five hundred twelve thousand, one hundred one".