75103945 has 8 divisors (see below), whose sum is σ = 102999744. Its totient is φ = 51499824.

The previous prime is 75103921. The next prime is 75103949. The reversal of 75103945 is 54930157.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75103945 - 2¹⁵ = 75071177 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 75103945.

It is not an unprimeable number, because it can be changed into a prime (75103949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072879 + ... + 1072948.

It is an arithmetic number, because the mean of its divisors is an integer number (12874968).

Almost surely, 2^75103945 is an apocalyptic number.

It is an amenable number.

75103945 is a deficient number, since it is larger than the sum of its proper divisors (27895799).

75103945 is a wasteful number, since it uses less digits than its factorization.

75103945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145839.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 75103945 is about 8666.2532273180. The cubic root of 75103945 is about 421.9110662902.

The spelling of 75103945 in words is "seventy-five million, one hundred three thousand, nine hundred forty-five".