71285030 has 8 divisors (see below), whose sum is σ = 128313072. Its totient is φ = 28514008.

The previous prime is 71285023. The next prime is 71285047. The reversal of 71285030 is 3058217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3564242 + ... + 3564261.

It is an arithmetic number, because the mean of its divisors is an integer number (16039134).

Almost surely, 2^71285030 is an apocalyptic number.

71285030 is a deficient number, since it is larger than the sum of its proper divisors (57028042).

71285030 is a wasteful number, since it uses less digits than its factorization.

71285030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128510.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 71285030 is about 8443.0462512058. The cubic root of 71285030 is about 414.6351464974.

The spelling of 71285030 in words is "seventy-one million, two hundred eighty-five thousand, thirty".