148587493 has 2 divisors, whose sum is σ = 148587494. Its totient is φ = 148587492.

The previous prime is 148587487. The next prime is 148587577. The reversal of 148587493 is 394785841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133587364 + 15000129 = 11558^2 + 3873^2 .

It is an emirp because it is prime and its reverse (394785841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148587493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148587443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74293746 + 74293747.

It is an arithmetic number, because the mean of its divisors is an integer number (74293747).

Almost surely, 2^148587493 is an apocalyptic number.

It is an amenable number.

148587493 is a deficient number, since it is larger than the sum of its proper divisors (1).

148587493 is an equidigital number, since it uses as much as digits as its factorization.

148587493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 148587493 is about 12189.6469596129. The cubic root of 148587493 is about 529.6562301389.

The spelling of 148587493 in words is "one hundred forty-eight million, five hundred eighty-seven thousand, four hundred ninety-three".