146308121 has 2 divisors, whose sum is σ = 146308122. Its totient is φ = 146308120.

The previous prime is 146308117. The next prime is 146308139. The reversal of 146308121 is 121803641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84842521 + 61465600 = 9211^2 + 7840^2 .

It is a cyclic number.

It is not a de Polignac number, because 146308121 - 2² = 146308117 is a prime.

It is not a weakly prime, because it can be changed into another prime (146308111) 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, 73154060 + 73154061.

It is an arithmetic number, because the mean of its divisors is an integer number (73154061).

Almost surely, 2^146308121 is an apocalyptic number.

It is an amenable number.

146308121 is a deficient number, since it is larger than the sum of its proper divisors (1).

146308121 is an equidigital number, since it uses as much as digits as its factorization.

146308121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 146308121 is about 12095.7893913543. The cubic root of 146308121 is about 526.9339057064.

The spelling of 146308121 in words is "one hundred forty-six million, three hundred eight thousand, one hundred twenty-one".