145106393 has 2 divisors, whose sum is σ = 145106394. Its totient is φ = 145106392.

The previous prime is 145106309. The next prime is 145106411. The reversal of 145106393 is 393601541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112296409 + 32809984 = 10597^2 + 5728^2 .

It is a cyclic number.

It is not a de Polignac number, because 145106393 - 2¹⁰ = 145105369 is a prime.

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 (145106303) 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, 72553196 + 72553197.

It is an arithmetic number, because the mean of its divisors is an integer number (72553197).

Almost surely, 2^145106393 is an apocalyptic number.

It is an amenable number.

145106393 is a deficient number, since it is larger than the sum of its proper divisors (1).

145106393 is an equidigital number, since it uses as much as digits as its factorization.

145106393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 145106393 is about 12046.0114975871. The cubic root of 145106393 is about 525.4872489326.

The spelling of 145106393 in words is "one hundred forty-five million, one hundred six thousand, three hundred ninety-three".