71002156 has 6 divisors (see below), whose sum is σ = 124253780. Its totient is φ = 35501076.

The previous prime is 71002147. The next prime is 71002199. The reversal of 71002156 is 65120017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8875266 + ... + 8875273.

Almost surely, 2^71002156 is an apocalyptic number.

It is an amenable number.

71002156 is a deficient number, since it is larger than the sum of its proper divisors (53251624).

71002156 is a wasteful number, since it uses less digits than its factorization.

71002156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17750543 (or 17750541 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 71002156 is about 8426.2777072679. The cubic root of 71002156 is about 414.0859662628.

The spelling of 71002156 in words is "seventy-one million, two thousand, one hundred fifty-six".