149556 has 36 divisors (see below), whose sum is σ = 387296. Its totient is φ = 44880.

The previous prime is 149551. The next prime is 149561. The reversal of 149556 is 655941.

It is an interprime number because it is at equal distance from previous prime (149551) and next prime (149561).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149556.

It is not an unprimeable number, because it can be changed into a prime (149551) by changing a digit.

149556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401 + ... + 1503.

2¹⁴⁹⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193648).

149556 is an abundant number, since it is smaller than the sum of its proper divisors (237740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149556 is a wasteful number, since it uses less digits than its factorization.

149556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 119 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 149556 is about 386.7247082874. The cubic root of 149556 is about 53.0804521590.

It can be divided in two parts, 1495 and 56, that added together give a palindrome (1551).

The spelling of 149556 in words is "one hundred forty-nine thousand, five hundred fifty-six".