149075144 has 16 divisors (see below), whose sum is σ = 291669120. Its totient is φ = 71296720.

The previous prime is 149075141. The next prime is 149075149. The reversal of 149075144 is 441570941.

It is not an unprimeable number, because it can be changed into a prime (149075141) 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, 404912 + ... + 405279.

It is an arithmetic number, because the mean of its divisors is an integer number (18229320).

Almost surely, 2^149075144 is an apocalyptic number.

It is an amenable number.

149075144 is a deficient number, since it is larger than the sum of its proper divisors (142593976).

149075144 is a wasteful number, since it uses less digits than its factorization.

149075144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810220 (or 810216 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 149075144 is about 12209.6332459251. The cubic root of 149075144 is about 530.2350257032.

The spelling of 149075144 in words is "one hundred forty-nine million, seventy-five thousand, one hundred forty-four".