71061000 has 64 divisors (see below), whose sum is σ = 221719680. Its totient is φ = 18948800.

The previous prime is 71060993. The next prime is 71061041. The reversal of 71061000 is 16017.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8844 + ... + 14843.

It is an arithmetic number, because the mean of its divisors is an integer number (3464370).

Almost surely, 2^71061000 is an apocalyptic number.

It is an amenable number.

71061000 is an abundant number, since it is smaller than the sum of its proper divisors (150658680).

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

71061000 is a wasteful number, since it uses less digits than its factorization.

71061000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23711 (or 23697 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 71061000 is about 8429.7686801003. The cubic root of 71061000 is about 414.2003277964.

Adding to 71061000 its reverse (16017), we get a palindrome (71077017).

The spelling of 71061000 in words is "seventy-one million, sixty-one thousand".