149488144 has 40 divisors (see below), whose sum is σ = 314424320. Its totient is φ = 68439168.

The previous prime is 149488139. The next prime is 149488147. The reversal of 149488144 is 441884941.

It is a self number, because there is not a number n which added to its sum of digits gives 149488144.

It is not an unprimeable number, because it can be changed into a prime (149488147) 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, 23587 + ... + 29245.

It is an arithmetic number, because the mean of its divisors is an integer number (7860608).

Almost surely, 2^149488144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149488144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157212160).

149488144 is an abundant number, since it is smaller than the sum of its proper divisors (164936176).

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

149488144 is a wasteful number, since it uses less digits than its factorization.

149488144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807 (or 5801 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 149488144 is about 12226.5344231307. The cubic root of 149488144 is about 530.7242312185.

The spelling of 149488144 in words is "one hundred forty-nine million, four hundred eighty-eight thousand, one hundred forty-four".