8541331457 has 4 divisors (see below), whose sum is σ = 8553692976. Its totient is φ = 8528969940.

The previous prime is 8541331433. The next prime is 8541331481. The reversal of 8541331457 is 7541331458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8541331433) and next prime (8541331481).

It is a cyclic number.

It is not a de Polignac number, because 8541331457 - 2²² = 8537137153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8541331427) 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, 6179723 + ... + 6181104.

It is an arithmetic number, because the mean of its divisors is an integer number (2138423244).

Almost surely, 2^8541331457 is an apocalyptic number.

It is an amenable number.

8541331457 is a deficient number, since it is larger than the sum of its proper divisors (12361519).

8541331457 is a wasteful number, since it uses less digits than its factorization.

8541331457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12361518.

The product of its digits is 201600, while the sum is 41.

The square root of 8541331457 is about 92419.3240453532. The cubic root of 8541331457 is about 2044.1300617712.

Subtracting from 8541331457 its reverse (7541331458), we obtain a palindrome (999999999).

The spelling of 8541331457 in words is "eight billion, five hundred forty-one million, three hundred thirty-one thousand, four hundred fifty-seven".