149219144 has 8 divisors (see below), whose sum is σ = 279785910. Its totient is φ = 74609568.

The previous prime is 149219137. The next prime is 149219153. The reversal of 149219144 is 441912941.

It can be written as a sum of positive squares in only one way, i.e., 82992100 + 66227044 = 9110^2 + 8138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9326189 + ... + 9326204.

Almost surely, 2^149219144 is an apocalyptic number.

It is an amenable number.

149219144 is a deficient number, since it is larger than the sum of its proper divisors (130566766).

149219144 is a wasteful number, since it uses less digits than its factorization.

149219144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652399 (or 18652395 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 149219144 is about 12215.5288055819. The cubic root of 149219144 is about 530.4056986270.

The spelling of 149219144 in words is "one hundred forty-nine million, two hundred nineteen thousand, one hundred forty-four".