149748020 has 12 divisors (see below), whose sum is σ = 314470884. Its totient is φ = 59899200.

The previous prime is 149747981. The next prime is 149748023. The reversal of 149748020 is 20847941.

It can be written as a sum of positive squares in 2 ways, for example, as 91164304 + 58583716 = 9548^2 + 7654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149748023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3743681 + ... + 3743720.

It is an arithmetic number, because the mean of its divisors is an integer number (26205907).

Almost surely, 2^149748020 is an apocalyptic number.

149748020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149748020 is an abundant number, since it is smaller than the sum of its proper divisors (164722864).

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

149748020 is a wasteful number, since it uses less digits than its factorization.

149748020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487410 (or 7487408 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 149748020 is about 12237.1573496462. The cubic root of 149748020 is about 531.0315970525.

The spelling of 149748020 in words is "one hundred forty-nine million, seven hundred forty-eight thousand, twenty".