8645151157 has 4 divisors (see below), whose sum is σ = 8655009676. Its totient is φ = 8635292640.

The previous prime is 8645151143. The next prime is 8645151173. The reversal of 8645151157 is 7511515468.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6920742481 + 1724408676 = 83191^2 + 41526^2 .

It is a cyclic number.

It is not a de Polignac number, because 8645151157 - 2⁷ = 8645151029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8645151857) 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, 4927944 + ... + 4929697.

It is an arithmetic number, because the mean of its divisors is an integer number (2163752419).

Almost surely, 2^8645151157 is an apocalyptic number.

It is an amenable number.

8645151157 is a deficient number, since it is larger than the sum of its proper divisors (9858519).

8645151157 is an equidigital number, since it uses as much as digits as its factorization.

8645151157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858518.

The product of its digits is 168000, while the sum is 43.

The square root of 8645151157 is about 92979.3049931005. The cubic root of 8645151157 is about 2052.3788491897.

The spelling of 8645151157 in words is "eight billion, six hundred forty-five million, one hundred fifty-one thousand, one hundred fifty-seven".