76125121 has 2 divisors, whose sum is σ = 76125122. Its totient is φ = 76125120.

The previous prime is 76125109. The next prime is 76125139. The reversal of 76125121 is 12152167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 25644096 = 7105^2 + 5064^2 .

It is an emirp because it is prime and its reverse (12152167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76125121 - 2⁵ = 76125089 is a prime.

It is not a weakly prime, because it can be changed into another prime (76125521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38062560 + 38062561.

It is an arithmetic number, because the mean of its divisors is an integer number (38062561).

Almost surely, 2^76125121 is an apocalyptic number.

It is an amenable number.

76125121 is a deficient number, since it is larger than the sum of its proper divisors (1).

76125121 is an equidigital number, since it uses as much as digits as its factorization.

76125121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 25.

The square root of 76125121 is about 8724.9711174307. The cubic root of 76125121 is about 423.8146829440.

Adding to 76125121 its reverse (12152167), we get a palindrome (88277288).

The spelling of 76125121 in words is "seventy-six million, one hundred twenty-five thousand, one hundred twenty-one".