149564 has 12 divisors (see below), whose sum is σ = 264600. Its totient is φ = 73968.

The previous prime is 149563. The next prime is 149579. The reversal of 149564 is 465941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149561) 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 in 3 ways as a sum of consecutive naturals, for example, 422 + ... + 690.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2¹⁴⁹⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

149564 is a deficient number, since it is larger than the sum of its proper divisors (115036).

149564 is a wasteful number, since it uses less digits than its factorization.

149564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 149564 is about 386.7350514241. The cubic root of 149564 is about 53.0813985961.

The spelling of 149564 in words is "one hundred forty-nine thousand, five hundred sixty-four".