146145121 has 2 divisors, whose sum is σ = 146145122. Its totient is φ = 146145120.

The previous prime is 146145119. The next prime is 146145143. The reversal of 146145121 is 121541641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144360225 + 1784896 = 12015^2 + 1336^2 .

It is a cyclic number.

It is not a de Polignac number, because 146145121 - 2¹ = 146145119 is a prime.

Together with 146145119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (146145521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73072560 + 73072561.

It is an arithmetic number, because the mean of its divisors is an integer number (73072561).

Almost surely, 2^146145121 is an apocalyptic number.

It is an amenable number.

146145121 is a deficient number, since it is larger than the sum of its proper divisors (1).

146145121 is an equidigital number, since it uses as much as digits as its factorization.

146145121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 146145121 is about 12089.0496317949. The cubic root of 146145121 is about 526.7381495578.

Adding to 146145121 its reverse (121541641), we get a palindrome (267686762).

The spelling of 146145121 in words is "one hundred forty-six million, one hundred forty-five thousand, one hundred twenty-one".