115145103 has 4 divisors (see below), whose sum is σ = 153526808. Its totient is φ = 76763400.

The previous prime is 115145087. The next prime is 115145113. The reversal of 115145103 is 301541511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 115145103 - 2⁴ = 115145087 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 115145103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115145113) 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, 19190848 + ... + 19190853.

It is an arithmetic number, because the mean of its divisors is an integer number (38381702).

Almost surely, 2^115145103 is an apocalyptic number.

115145103 is a deficient number, since it is larger than the sum of its proper divisors (38381705).

115145103 is an equidigital number, since it uses as much as digits as its factorization.

115145103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38381704.

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

The square root of 115145103 is about 10730.5686242622. The cubic root of 115145103 is about 486.4988569388.

Adding to 115145103 its reverse (301541511), we get a palindrome (416686614).

The spelling of 115145103 in words is "one hundred fifteen million, one hundred forty-five thousand, one hundred three".