978112571 has 4 divisors (see below), whose sum is σ = 1029592200. Its totient is φ = 926632944.

The previous prime is 978112549. The next prime is 978112579. The reversal of 978112571 is 175211879.

978112571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175211879 = 761 ⋅230239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978112571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978112579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25739786 + ... + 25739823.

It is an arithmetic number, because the mean of its divisors is an integer number (257398050).

Almost surely, 2^978112571 is an apocalyptic number.

978112571 is a deficient number, since it is larger than the sum of its proper divisors (51479629).

978112571 is a wasteful number, since it uses less digits than its factorization.

978112571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51479628.

The product of its digits is 35280, while the sum is 41.

The square root of 978112571 is about 31274.7913022613. The cubic root of 978112571 is about 992.6503046503.

The spelling of 978112571 in words is "nine hundred seventy-eight million, one hundred twelve thousand, five hundred seventy-one".