149289523 has 2 divisors, whose sum is σ = 149289524. Its totient is φ = 149289522.

The previous prime is 149289473. The next prime is 149289533. The reversal of 149289523 is 325982941.

It is a strong prime.

It is an emirp because it is prime and its reverse (325982941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149289523 - 2⁹ = 149289011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149289523.

It is not a weakly prime, because it can be changed into another prime (149289533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74644761 + 74644762.

It is an arithmetic number, because the mean of its divisors is an integer number (74644762).

Almost surely, 2^149289523 is an apocalyptic number.

149289523 is a deficient number, since it is larger than the sum of its proper divisors (1).

149289523 is an equidigital number, since it uses as much as digits as its factorization.

149289523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 149289523 is about 12218.4091845052. The cubic root of 149289523 is about 530.4890738884.

The spelling of 149289523 in words is "one hundred forty-nine million, two hundred eighty-nine thousand, five hundred twenty-three".