146173493 has 2 divisors, whose sum is σ = 146173494. Its totient is φ = 146173492.

The previous prime is 146173483. The next prime is 146173499. The reversal of 146173493 is 394371641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93276964 + 52896529 = 9658^2 + 7273^2 .

It is a cyclic number.

It is not a de Polignac number, because 146173493 - 2⁴ = 146173477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146173499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73086746 + 73086747.

It is an arithmetic number, because the mean of its divisors is an integer number (73086747).

Almost surely, 2^146173493 is an apocalyptic number.

It is an amenable number.

146173493 is a deficient number, since it is larger than the sum of its proper divisors (1).

146173493 is an equidigital number, since it uses as much as digits as its factorization.

146173493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 146173493 is about 12090.2230335093. The cubic root of 146173493 is about 526.7722335963.

The spelling of 146173493 in words is "one hundred forty-six million, one hundred seventy-three thousand, four hundred ninety-three".