71903134 has 4 divisors (see below), whose sum is σ = 107854704. Its totient is φ = 35951566.

The previous prime is 71903119. The next prime is 71903137. The reversal of 71903134 is 43130917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43130917 = 29 ⋅1487273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71903137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17975782 + ... + 17975785.

It is an arithmetic number, because the mean of its divisors is an integer number (26963676).

Almost surely, 2^71903134 is an apocalyptic number.

71903134 is a deficient number, since it is larger than the sum of its proper divisors (35951570).

71903134 is a wasteful number, since it uses less digits than its factorization.

71903134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35951569.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71903134 is about 8479.5715693660. The cubic root of 71903134 is about 415.8301166235.

The spelling of 71903134 in words is "seventy-one million, nine hundred three thousand, one hundred thirty-four".