145083493 has 2 divisors, whose sum is σ = 145083494. Its totient is φ = 145083492.

The previous prime is 145083481. The next prime is 145083557. The reversal of 145083493 is 394380541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115304644 + 29778849 = 10738^2 + 5457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145083493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145083413) 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, 72541746 + 72541747.

It is an arithmetic number, because the mean of its divisors is an integer number (72541747).

Almost surely, 2^145083493 is an apocalyptic number.

It is an amenable number.

145083493 is a deficient number, since it is larger than the sum of its proper divisors (1).

145083493 is an equidigital number, since it uses as much as digits as its factorization.

145083493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 145083493 is about 12045.0609379945. The cubic root of 145083493 is about 525.4596041798.

The spelling of 145083493 in words is "one hundred forty-five million, eighty-three thousand, four hundred ninety-three".