149589547 has 2 divisors, whose sum is σ = 149589548. Its totient is φ = 149589546.

The previous prime is 149589523. The next prime is 149589553. The reversal of 149589547 is 745985941.

149589547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (745985941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149589547 - 2¹¹ = 149587499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149589494 and 149589503.

It is not a weakly prime, because it can be changed into another prime (149589577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74794773 + 74794774.

It is an arithmetic number, because the mean of its divisors is an integer number (74794774).

Almost surely, 2^149589547 is an apocalyptic number.

149589547 is a deficient number, since it is larger than the sum of its proper divisors (1).

149589547 is an equidigital number, since it uses as much as digits as its factorization.

149589547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 52.

The square root of 149589547 is about 12230.6805616041. The cubic root of 149589547 is about 530.8442069877.

The spelling of 149589547 in words is "one hundred forty-nine million, five hundred eighty-nine thousand, five hundred forty-seven".