71149134 has 16 divisors (see below), whose sum is σ = 162626688. Its totient is φ = 20328312.

The previous prime is 71149087. The next prime is 71149157. The reversal of 71149134 is 43194117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846972 + ... + 847055.

It is an arithmetic number, because the mean of its divisors is an integer number (10164168).

Almost surely, 2^71149134 is an apocalyptic number.

71149134 is an abundant number, since it is smaller than the sum of its proper divisors (91477554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71149134 is a wasteful number, since it uses less digits than its factorization.

71149134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694039.

The product of its digits is 3024, while the sum is 30.

The square root of 71149134 is about 8434.9946058074. The cubic root of 71149134 is about 414.3714955262.

The spelling of 71149134 in words is "seventy-one million, one hundred forty-nine thousand, one hundred thirty-four".