146145641 has 2 divisors, whose sum is σ = 146145642. Its totient is φ = 146145640.

The previous prime is 146145581. The next prime is 146145661. The reversal of 146145641 is 146541641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130622041 + 15523600 = 11429^2 + 3940^2 .

It is an emirp because it is prime and its reverse (146541641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146145641 - 2⁶ = 146145577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 146145598 and 146145607.

It is not a weakly prime, because it can be changed into another prime (146145661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73072820 + 73072821.

It is an arithmetic number, because the mean of its divisors is an integer number (73072821).

Almost surely, 2^146145641 is an apocalyptic number.

It is an amenable number.

146145641 is a deficient number, since it is larger than the sum of its proper divisors (1).

146145641 is an equidigital number, since it uses as much as digits as its factorization.

146145641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 146145641 is about 12089.0711388427. The cubic root of 146145641 is about 526.7387742874.

The spelling of 146145641 in words is "one hundred forty-six million, one hundred forty-five thousand, six hundred forty-one".