149805620 has 24 divisors (see below), whose sum is σ = 315055104. Its totient is φ = 59834016.

The previous prime is 149805577. The next prime is 149805629. The reversal of 149805620 is 26508941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149805629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9389 + ... + 19691.

It is an arithmetic number, because the mean of its divisors is an integer number (13127296).

Almost surely, 2^149805620 is an apocalyptic number.

149805620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149805620 is an abundant number, since it is smaller than the sum of its proper divisors (165249484).

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

149805620 is a wasteful number, since it uses less digits than its factorization.

149805620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11039 (or 11037 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 149805620 is about 12239.5106111315. The cubic root of 149805620 is about 531.0996747452.

The spelling of 149805620 in words is "one hundred forty-nine million, eight hundred five thousand, six hundred twenty".