149889160 has 64 divisors (see below), whose sum is σ = 354170880. Its totient is φ = 56981760.

The previous prime is 149889143. The next prime is 149889161. The reversal of 149889160 is 61988941.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 149889160.

It is not an unprimeable number, because it can be changed into a prime (149889161) 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, 175294 + ... + 176146.

It is an arithmetic number, because the mean of its divisors is an integer number (5533920).

Almost surely, 2^149889160 is an apocalyptic number.

149889160 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 149889160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177085440).

149889160 is an abundant number, since it is smaller than the sum of its proper divisors (204281720).

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

149889160 is a wasteful number, since it uses less digits than its factorization.

149889160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 149889160 is about 12242.9228536326. The cubic root of 149889160 is about 531.1983800363.

The spelling of 149889160 in words is "one hundred forty-nine million, eight hundred eighty-nine thousand, one hundred sixty".