71356030 has 16 divisors (see below), whose sum is σ = 128594304. Its totient is φ = 28508320.

The previous prime is 71355983. The next prime is 71356057. The reversal of 71356030 is 3065317.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71355986 and 71356004.

It is a congruent number.

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, 5619 + ... + 13201.

It is an arithmetic number, because the mean of its divisors is an integer number (8037144).

Almost surely, 2^71356030 is an apocalyptic number.

71356030 is a deficient number, since it is larger than the sum of its proper divisors (57238274).

71356030 is a wasteful number, since it uses less digits than its factorization.

71356030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 71356030 is about 8447.2498483234. The cubic root of 71356030 is about 414.7727599020.

The spelling of 71356030 in words is "seventy-one million, three hundred fifty-six thousand, thirty".