148539664309 has 2 divisors, whose sum is σ = 148539664310. Its totient is φ = 148539664308.

The previous prime is 148539664297. The next prime is 148539664367. The reversal of 148539664309 is 903466935841.

It is an a-pointer prime, because the next prime (148539664367) can be obtained adding 148539664309 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147191159025 + 1348505284 = 383655^2 + 36722^2 .

It is a cyclic number.

It is not a de Polignac number, because 148539664309 - 2²⁹ = 148002793397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148539614309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74269832154 + 74269832155.

It is an arithmetic number, because the mean of its divisors is an integer number (74269832155).

Almost surely, 2^148539664309 is an apocalyptic number.

It is an amenable number.

148539664309 is a deficient number, since it is larger than the sum of its proper divisors (1).

148539664309 is an equidigital number, since it uses as much as digits as its factorization.

148539664309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 148539664309 in words is "one hundred forty-eight billion, five hundred thirty-nine million, six hundred sixty-four thousand, three hundred nine".