71849134 has 16 divisors (see below), whose sum is σ = 127143936. Its totient is φ = 29799000.

The previous prime is 71849119. The next prime is 71849159. The reversal of 71849134 is 43194817.

It is a junction number, because it is equal to n+sod(n) for n = 71849093 and 71849102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82342 + ... + 83209.

It is an arithmetic number, because the mean of its divisors is an integer number (7946496).

Almost surely, 2^71849134 is an apocalyptic number.

71849134 is a deficient number, since it is larger than the sum of its proper divisors (55294802).

71849134 is a wasteful number, since it uses less digits than its factorization.

71849134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165591.

The product of its digits is 24192, while the sum is 37.

The square root of 71849134 is about 8476.3868481801. The cubic root of 71849134 is about 415.7259929751.

The spelling of 71849134 in words is "seventy-one million, eight hundred forty-nine thousand, one hundred thirty-four".