149288 has 8 divisors (see below), whose sum is σ = 279930. Its totient is φ = 74640.

The previous prime is 149287. The next prime is 149297. The reversal of 149288 is 882941.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 3364 = 382^2 + 58^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (149287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9323 + ... + 9338.

2¹⁴⁹²⁸⁸ is an apocalyptic number.

It is an amenable number.

149288 is a deficient number, since it is larger than the sum of its proper divisors (130642).

149288 is a wasteful number, since it uses less digits than its factorization.

149288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18667 (or 18663 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 149288 is about 386.3780532070. The cubic root of 149288 is about 53.0487269927.

The spelling of 149288 in words is "one hundred forty-nine thousand, two hundred eighty-eight".