75888121 has 2 divisors, whose sum is σ = 75888122. Its totient is φ = 75888120.

The previous prime is 75888107. The next prime is 75888133. The reversal of 75888121 is 12188857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51681721 + 24206400 = 7189^2 + 4920^2 .

It is an emirp because it is prime and its reverse (12188857) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75888121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75888151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37944060 + 37944061.

It is an arithmetic number, because the mean of its divisors is an integer number (37944061).

Almost surely, 2^75888121 is an apocalyptic number.

It is an amenable number.

75888121 is a deficient number, since it is larger than the sum of its proper divisors (1).

75888121 is an equidigital number, since it uses as much as digits as its factorization.

75888121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 40.

The square root of 75888121 is about 8711.3788231255. The cubic root of 75888121 is about 423.3744056016.

The spelling of 75888121 in words is "seventy-five million, eight hundred eighty-eight thousand, one hundred twenty-one".