71378103 has 4 divisors (see below), whose sum is σ = 95170808. Its totient is φ = 47585400.

The previous prime is 71378093. The next prime is 71378137. The reversal of 71378103 is 30187317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30187317 = 3 ⋅10062439.

It is not a de Polignac number, because 71378103 - 2⁵ = 71378071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71378183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11896348 + ... + 11896353.

It is an arithmetic number, because the mean of its divisors is an integer number (23792702).

Almost surely, 2^71378103 is an apocalyptic number.

71378103 is a deficient number, since it is larger than the sum of its proper divisors (23792705).

71378103 is a wasteful number, since it uses less digits than its factorization.

71378103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23792704.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71378103 is about 8448.5562671974. The cubic root of 71378103 is about 414.8155235632.

The spelling of 71378103 in words is "seventy-one million, three hundred seventy-eight thousand, one hundred three".