75046121 has 2 divisors, whose sum is σ = 75046122. Its totient is φ = 75046120.

The previous prime is 75046099. The next prime is 75046123. The reversal of 75046121 is 12164057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 2131600 = 8539^2 + 1460^2 .

It is an emirp because it is prime and its reverse (12164057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75046121 is a prime.

Together with 75046123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75046123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37523060 + 37523061.

It is an arithmetic number, because the mean of its divisors is an integer number (37523061).

Almost surely, 2^75046121 is an apocalyptic number.

It is an amenable number.

75046121 is a deficient number, since it is larger than the sum of its proper divisors (1).

75046121 is an equidigital number, since it uses as much as digits as its factorization.

75046121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 75046121 is about 8662.9164257772. The cubic root of 75046121 is about 421.8027592884.

The spelling of 75046121 in words is "seventy-five million, forty-six thousand, one hundred twenty-one".