148935593 has 2 divisors, whose sum is σ = 148935594. Its totient is φ = 148935592.

The previous prime is 148935583. The next prime is 148935599. The reversal of 148935593 is 395539841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77651344 + 71284249 = 8812^2 + 8443^2 .

It is an emirp because it is prime and its reverse (395539841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148935593 - 2⁸ = 148935337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (148935599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74467796 + 74467797.

It is an arithmetic number, because the mean of its divisors is an integer number (74467797).

Almost surely, 2^148935593 is an apocalyptic number.

It is an amenable number.

148935593 is a deficient number, since it is larger than the sum of its proper divisors (1).

148935593 is an equidigital number, since it uses as much as digits as its factorization.

148935593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 47.

The square root of 148935593 is about 12203.9171170571. The cubic root of 148935593 is about 530.0695209623.

The spelling of 148935593 in words is "one hundred forty-eight million, nine hundred thirty-five thousand, five hundred ninety-three".