103915345 has 4 divisors (see below), whose sum is σ = 124698420. Its totient is φ = 83132272.

The previous prime is 103915327. The next prime is 103915349. The reversal of 103915345 is 543519301.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 86266944 = 4201^2 + 9288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103915345 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103915349) 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, 10391530 + ... + 10391539.

It is an arithmetic number, because the mean of its divisors is an integer number (31174605).

Almost surely, 2^103915345 is an apocalyptic number.

It is an amenable number.

103915345 is a deficient number, since it is larger than the sum of its proper divisors (20783075).

103915345 is an equidigital number, since it uses as much as digits as its factorization.

103915345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783074.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 103915345 is about 10193.8876293591. The cubic root of 103915345 is about 470.1393053190.

It can be divided in two parts, 1039 and 15345, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 103915345 in words is "one hundred three million, nine hundred fifteen thousand, three hundred forty-five".