71129146 has 16 divisors (see below), whose sum is σ = 116523360. Its totient is φ = 32295280.

The previous prime is 71129117. The next prime is 71129153. The reversal of 71129146 is 64192117.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 34620 + ... + 36616.

It is an arithmetic number, because the mean of its divisors is an integer number (7282710).

Almost surely, 2^71129146 is an apocalyptic number.

71129146 is a deficient number, since it is larger than the sum of its proper divisors (45394214).

71129146 is a wasteful number, since it uses less digits than its factorization.

71129146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 3024, while the sum is 31.

The square root of 71129146 is about 8433.8096966911. The cubic root of 71129146 is about 414.3326886207.

The spelling of 71129146 in words is "seventy-one million, one hundred twenty-nine thousand, one hundred forty-six".