71710146 has 12 divisors (see below), whose sum is σ = 155372022. Its totient is φ = 23903376.

The previous prime is 71710103. The next prime is 71710151. The reversal of 71710146 is 64101717.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 27154521 = 6675^2 + 5211^2 .

It is a Curzon 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 5 ways as a sum of consecutive naturals, for example, 1991931 + ... + 1991966.

Almost surely, 2^71710146 is an apocalyptic number.

71710146 is an abundant number, since it is smaller than the sum of its proper divisors (83661876).

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

71710146 is a wasteful number, since it uses less digits than its factorization.

71710146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983905 (or 3983902 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 71710146 is about 8468.1843390422. The cubic root of 71710146 is about 415.4577539622.

The spelling of 71710146 in words is "seventy-one million, seven hundred ten thousand, one hundred forty-six".