149818423 has 2 divisors, whose sum is σ = 149818424. Its totient is φ = 149818422.

The previous prime is 149818397. The next prime is 149818483. The reversal of 149818423 is 324818941.

149818423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (324818941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149818423 - 2⁹ = 149817911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149818483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74909211 + 74909212.

It is an arithmetic number, because the mean of its divisors is an integer number (74909212).

Almost surely, 2^149818423 is an apocalyptic number.

149818423 is a deficient number, since it is larger than the sum of its proper divisors (1).

149818423 is an equidigital number, since it uses as much as digits as its factorization.

149818423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 149818423 is about 12240.0336192349. The cubic root of 149818423 is about 531.1148042965.

The spelling of 149818423 in words is "one hundred forty-nine million, eight hundred eighteen thousand, four hundred twenty-three".