149542434 has 12 divisors (see below), whose sum is σ = 324008646. Its totient is φ = 49847472.

The previous prime is 149542423. The next prime is 149542439. The reversal of 149542434 is 434245941.

It can be written as a sum of positive squares in only one way, i.e., 149450625 + 91809 = 12225^2 + 303^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (149542439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4153939 + ... + 4153974.

Almost surely, 2^149542434 is an apocalyptic number.

149542434 is an abundant number, since it is smaller than the sum of its proper divisors (174466212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149542434 is a wasteful number, since it uses less digits than its factorization.

149542434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8307921 (or 8307918 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 149542434 is about 12228.7543928235. The cubic root of 149542434 is about 530.7884716112.

The spelling of 149542434 in words is "one hundred forty-nine million, five hundred forty-two thousand, four hundred thirty-four".