149995423 has 2 divisors, whose sum is σ = 149995424. Its totient is φ = 149995422.

The previous prime is 149995421. The next prime is 149995427. The reversal of 149995423 is 324599941.

It is a weak prime.

It is an emirp because it is prime and its reverse (324599941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149995423 - 2¹ = 149995421 is a prime.

Together with 149995421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149995421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74997711 + 74997712.

It is an arithmetic number, because the mean of its divisors is an integer number (74997712).

Almost surely, 2^149995423 is an apocalyptic number.

149995423 is a deficient number, since it is larger than the sum of its proper divisors (1).

149995423 is an equidigital number, since it uses as much as digits as its factorization.

149995423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 149995423 is about 12247.2618572479. The cubic root of 149995423 is about 531.3238803271.

The spelling of 149995423 in words is "one hundred forty-nine million, nine hundred ninety-five thousand, four hundred twenty-three".