149307220 has 24 divisors (see below), whose sum is σ = 314068608. Its totient is φ = 59623200.

The previous prime is 149307217. The next prime is 149307227. The reversal of 149307220 is 22703941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149307227) 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, 6705 + ... + 18535.

It is an arithmetic number, because the mean of its divisors is an integer number (13086192).

Almost surely, 2^149307220 is an apocalyptic number.

149307220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149307220 is an abundant number, since it is smaller than the sum of its proper divisors (164761388).

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

149307220 is a wasteful number, since it uses less digits than its factorization.

149307220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471 (or 12469 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 149307220 is about 12219.1333571575. The cubic root of 149307220 is about 530.5100347123.

The spelling of 149307220 in words is "one hundred forty-nine million, three hundred seven thousand, two hundred twenty".