149032220 has 24 divisors (see below), whose sum is σ = 313198704. Its totient is φ = 59568896.

The previous prime is 149032199. The next prime is 149032223. The reversal of 149032220 is 22230941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149032223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46799 + ... + 49881.

It is an arithmetic number, because the mean of its divisors is an integer number (13049946).

Almost surely, 2^149032220 is an apocalyptic number.

149032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149032220 is an abundant number, since it is smaller than the sum of its proper divisors (164166484).

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

149032220 is a wasteful number, since it uses less digits than its factorization.

149032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509 (or 5507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 149032220 is about 12207.8753270174. The cubic root of 149032220 is about 530.1841296865.

The spelling of 149032220 in words is "one hundred forty-nine million, thirty-two thousand, two hundred twenty".