149805436 has 12 divisors (see below), whose sum is σ = 285992280. Its totient is φ = 68093360.

The previous prime is 149805427. The next prime is 149805437. The reversal of 149805436 is 634508941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149805437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702291 + ... + 1702378.

It is an arithmetic number, because the mean of its divisors is an integer number (23832690).

Almost surely, 2^149805436 is an apocalyptic number.

It is an amenable number.

149805436 is a deficient number, since it is larger than the sum of its proper divisors (136186844).

149805436 is a wasteful number, since it uses less digits than its factorization.

149805436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404684 (or 3404682 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 149805436 is about 12239.5030944888. The cubic root of 149805436 is about 531.0994573025.

The spelling of 149805436 in words is "one hundred forty-nine million, eight hundred five thousand, four hundred thirty-six".