4345750121 has 2 divisors, whose sum is σ = 4345750122. Its totient is φ = 4345750120.

The previous prime is 4345750099. The next prime is 4345750133. The reversal of 4345750121 is 1210575434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3625364521 + 720385600 = 60211^2 + 26840^2 .

It is a cyclic number.

It is not a de Polignac number, because 4345750121 - 2¹⁴ = 4345733737 is a prime.

It is a super-2 number, since 2×4345750121² = 37771088228343029282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4345750141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172875060 + 2172875061.

It is an arithmetic number, because the mean of its divisors is an integer number (2172875061).

Almost surely, 2^4345750121 is an apocalyptic number.

It is an amenable number.

4345750121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4345750121 is an equidigital number, since it uses as much as digits as its factorization.

4345750121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 4345750121 is about 65922.3036687888. The cubic root of 4345750121 is about 1631.8801145485.

The spelling of 4345750121 in words is "four billion, three hundred forty-five million, seven hundred fifty thousand, one hundred twenty-one".