149787423 has 12 divisors (see below), whose sum is σ = 217387768. Its totient is φ = 99383760.

The previous prime is 149787413. The next prime is 149787457. The reversal of 149787423 is 324787941.

149787423 is a `hidden beast` number, since 149 + 7 + 87 + 423 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-149787423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149787413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37540 + ... + 41337.

Almost surely, 2^149787423 is an apocalyptic number.

149787423 is a deficient number, since it is larger than the sum of its proper divisors (67600345).

149787423 is a wasteful number, since it uses less digits than its factorization.

149787423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79094 (or 79091 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 149787423 is about 12238.7672173303. The cubic root of 149787423 is about 531.0781695170.

The spelling of 149787423 in words is "one hundred forty-nine million, seven hundred eighty-seven thousand, four hundred twenty-three".