149956 has 6 divisors (see below), whose sum is σ = 262430. Its totient is φ = 74976.

The previous prime is 149953. The next prime is 149969. The reversal of 149956 is 659941.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 2500 = 384^2 + 50^2 .

It is not an unprimeable number, because it can be changed into a prime (149953) 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, 18741 + ... + 18748.

2¹⁴⁹⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

149956 is a deficient number, since it is larger than the sum of its proper divisors (112474).

149956 is a wasteful number, since it uses less digits than its factorization.

149956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37493 (or 37491 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 149956 is about 387.2415266988. The cubic root of 149956 is about 53.1277327314.

The spelling of 149956 in words is "one hundred forty-nine thousand, nine hundred fifty-six".