170148493 has 2 divisors, whose sum is σ = 170148494. Its totient is φ = 170148492.

The previous prime is 170148487. The next prime is 170148551. The reversal of 170148493 is 394841071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87665769 + 82482724 = 9363^2 + 9082^2 .

It is a cyclic number.

It is not a de Polignac number, because 170148493 - 2⁹ = 170147981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170148793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85074246 + 85074247.

It is an arithmetic number, because the mean of its divisors is an integer number (85074247).

Almost surely, 2^170148493 is an apocalyptic number.

It is an amenable number.

170148493 is a deficient number, since it is larger than the sum of its proper divisors (1).

170148493 is an equidigital number, since it uses as much as digits as its factorization.

170148493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 170148493 is about 13044.0980140445. The cubic root of 170148493 is about 554.1270729459.

The spelling of 170148493 in words is "one hundred seventy million, one hundred forty-eight thousand, four hundred ninety-three".