149103820 has 24 divisors (see below), whose sum is σ = 313349904. Its totient is φ = 59597376.

The previous prime is 149103817. The next prime is 149103827. The reversal of 149103820 is 28301941.

It is a happy number.

149103820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (149103827) 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, 45559 + ... + 48721.

It is an arithmetic number, because the mean of its divisors is an integer number (13056246).

Almost surely, 2^149103820 is an apocalyptic number.

149103820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149103820 is an abundant number, since it is smaller than the sum of its proper divisors (164246084).

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

149103820 is a wasteful number, since it uses less digits than its factorization.

149103820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5527 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 149103820 is about 12210.8075081053. The cubic root of 149103820 is about 530.2690220810.

The spelling of 149103820 in words is "one hundred forty-nine million, one hundred three thousand, eight hundred twenty".