7971112153 has 4 divisors (see below), whose sum is σ = 8024609700. Its totient is φ = 7917614608.

The previous prime is 7971112147. The next prime is 7971112159. The reversal of 7971112153 is 3512111797.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7971112147) and next prime (7971112159).

It can be written as a sum of positive squares in 2 ways, for example, as 2602326169 + 5368785984 = 51013^2 + 73272^2 .

It is a cyclic number.

It is not a de Polignac number, because 7971112153 - 2⁹ = 7971111641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7971112159) 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, 26748550 + ... + 26748847.

It is an arithmetic number, because the mean of its divisors is an integer number (2006152425).

Almost surely, 2^7971112153 is an apocalyptic number.

It is an amenable number.

7971112153 is a deficient number, since it is larger than the sum of its proper divisors (53497547).

7971112153 is a wasteful number, since it uses less digits than its factorization.

7971112153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53497546.

The product of its digits is 13230, while the sum is 37.

The square root of 7971112153 is about 89281.0850796517. The cubic root of 7971112153 is about 1997.5897759936.

The spelling of 7971112153 in words is "seven billion, nine hundred seventy-one million, one hundred twelve thousand, one hundred fifty-three".