103115135 has 4 divisors (see below), whose sum is σ = 123738168. Its totient is φ = 82492104.

The previous prime is 103115113. The next prime is 103115153. The reversal of 103115135 is 531511301.

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

It is a cyclic number.

It is not a de Polignac number, because 103115135 - 2¹⁸ = 102852991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10311509 + ... + 10311518.

It is an arithmetic number, because the mean of its divisors is an integer number (30934542).

Almost surely, 2^103115135 is an apocalyptic number.

103115135 is a deficient number, since it is larger than the sum of its proper divisors (20623033).

103115135 is an equidigital number, since it uses as much as digits as its factorization.

103115135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20623032.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 103115135 is about 10154.5622751549. The cubic root of 103115135 is about 468.9294101975.

Adding to 103115135 its reverse (531511301), we get a palindrome (634626436).

The spelling of 103115135 in words is "one hundred three million, one hundred fifteen thousand, one hundred thirty-five".