8457600121 has 4 divisors (see below), whose sum is σ = 8460778752. Its totient is φ = 8454421492.

The previous prime is 8457600077. The next prime is 8457600127. The reversal of 8457600121 is 1210067548.

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 a cyclic number.

It is not a de Polignac number, because 8457600121 - 2⁷ = 8457599993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8457600127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585321 + ... + 1590646.

It is an arithmetic number, because the mean of its divisors is an integer number (2115194688).

Almost surely, 2^8457600121 is an apocalyptic number.

It is an amenable number.

8457600121 is a deficient number, since it is larger than the sum of its proper divisors (3178631).

8457600121 is a wasteful number, since it uses less digits than its factorization.

8457600121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178630.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 8457600121 is about 91965.2114715124. The cubic root of 8457600121 is about 2037.4285266609.

Adding to 8457600121 its reverse (1210067548), we get a palindrome (9667667669).

The spelling of 8457600121 in words is "eight billion, four hundred fifty-seven million, six hundred thousand, one hundred twenty-one".