149143135789 has 2 divisors, whose sum is σ = 149143135790. Its totient is φ = 149143135788.

The previous prime is 149143135681. The next prime is 149143135793. The reversal of 149143135789 is 987531341941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144767313289 + 4375822500 = 380483^2 + 66150^2 .

It is an emirp because it is prime and its reverse (987531341941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149143135789 - 2⁹ = 149143135277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149143435789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74571567894 + 74571567895.

It is an arithmetic number, because the mean of its divisors is an integer number (74571567895).

Almost surely, 2^149143135789 is an apocalyptic number.

It is an amenable number.

149143135789 is a deficient number, since it is larger than the sum of its proper divisors (1).

149143135789 is an equidigital number, since it uses as much as digits as its factorization.

149143135789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 55.

The spelling of 149143135789 in words is "one hundred forty-nine billion, one hundred forty-three million, one hundred thirty-five thousand, seven hundred eighty-nine".