70871245 has 8 divisors (see below), whose sum is σ = 85144320. Its totient is φ = 56631120.

The previous prime is 70871219. The next prime is 70871261. The reversal of 70871245 is 54217807.

It is a happy number.

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

It is not a de Polignac number, because 70871245 - 2⁷ = 70871117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70871245.

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, 3225 + ... + 12334.

It is an arithmetic number, because the mean of its divisors is an integer number (10643040).

Almost surely, 2^70871245 is an apocalyptic number.

It is an amenable number.

70871245 is a deficient number, since it is larger than the sum of its proper divisors (14273075).

70871245 is a wasteful number, since it uses less digits than its factorization.

70871245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 70871245 is about 8418.5061026289. The cubic root of 70871245 is about 413.8313178552.

The spelling of 70871245 in words is "seventy million, eight hundred seventy-one thousand, two hundred forty-five".