149718320 has 80 divisors (see below), whose sum is σ = 370824480. Its totient is φ = 56020992.

The previous prime is 149718311. The next prime is 149718323. The reversal of 149718320 is 23817941.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149718323) 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 15 ways as a sum of consecutive naturals, for example, 384686 + ... + 385074.

It is an arithmetic number, because the mean of its divisors is an integer number (4635306).

Almost surely, 2^149718320 is an apocalyptic number.

149718320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149718320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185412240).

149718320 is an abundant number, since it is smaller than the sum of its proper divisors (221106160).

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

149718320 is a wasteful number, since it uses less digits than its factorization.

149718320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 149718320 is about 12235.9437723455. The cubic root of 149718320 is about 530.9964876707.

The spelling of 149718320 in words is "one hundred forty-nine million, seven hundred eighteen thousand, three hundred twenty".