71075020 has 12 divisors (see below), whose sum is σ = 149257584. Its totient is φ = 28430000.

The previous prime is 71074987. The next prime is 71075021. The reversal of 71075020 is 2057017.

It is a junction number, because it is equal to n+sod(n) for n = 71074982 and 71075000.

It is not an unprimeable number, because it can be changed into a prime (71075021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1776856 + ... + 1776895.

It is an arithmetic number, because the mean of its divisors is an integer number (12438132).

Almost surely, 2^71075020 is an apocalyptic number.

It is an amenable number.

71075020 is an abundant number, since it is smaller than the sum of its proper divisors (78182564).

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

71075020 is a wasteful number, since it uses less digits than its factorization.

71075020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553760 (or 3553758 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 71075020 is about 8430.6002158802. The cubic root of 71075020 is about 414.2275659286.

The spelling of 71075020 in words is "seventy-one million, seventy-five thousand, twenty".