149220620 has 12 divisors (see below), whose sum is σ = 313363344. Its totient is φ = 59688240.

The previous prime is 149220601. The next prime is 149220649. The reversal of 149220620 is 26022941.

It is a self number, because there is not a number n which added to its sum of digits gives 149220620.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3730496 + ... + 3730535.

It is an arithmetic number, because the mean of its divisors is an integer number (26113612).

Almost surely, 2^149220620 is an apocalyptic number.

149220620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149220620 is an abundant number, since it is smaller than the sum of its proper divisors (164142724).

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

149220620 is a wasteful number, since it uses less digits than its factorization.

149220620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7461040 (or 7461038 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 149220620 is about 12215.5892203364. The cubic root of 149220620 is about 530.4074474558.

The spelling of 149220620 in words is "one hundred forty-nine million, two hundred twenty thousand, six hundred twenty".