75619121 has 2 divisors, whose sum is σ = 75619122. Its totient is φ = 75619120.

The previous prime is 75619079. The next prime is 75619127. The reversal of 75619121 is 12191657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54228496 + 21390625 = 7364^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 75619121 - 2⁶ = 75619057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75619127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37809560 + 37809561.

It is an arithmetic number, because the mean of its divisors is an integer number (37809561).

Almost surely, 2^75619121 is an apocalyptic number.

It is an amenable number.

75619121 is a deficient number, since it is larger than the sum of its proper divisors (1).

75619121 is an equidigital number, since it uses as much as digits as its factorization.

75619121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 32.

The square root of 75619121 is about 8695.9255401596. The cubic root of 75619121 is about 422.8735694371.

The spelling of 75619121 in words is "seventy-five million, six hundred nineteen thousand, one hundred twenty-one".