149566 has 16 divisors (see below), whose sum is σ = 244944. Its totient is φ = 68224.

The previous prime is 149563. The next prime is 149579. The reversal of 149566 is 665941.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (15309).

2¹⁴⁹⁵⁶⁶ is an apocalyptic number.

149566 is a deficient number, since it is larger than the sum of its proper divisors (95378).

149566 is a wasteful number, since it uses less digits than its factorization.

149566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155.

The product of its digits is 6480, while the sum is 31.

The square root of 149566 is about 386.7376371650. The cubic root of 149566 is about 53.0816352001.

The spelling of 149566 in words is "one hundred forty-nine thousand, five hundred sixty-six".