149550 has 24 divisors (see below), whose sum is σ = 371256. Its totient is φ = 39840.

The previous prime is 149543. The next prime is 149551. The reversal of 149550 is 55941.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 149550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149551) 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 11 ways as a sum of consecutive naturals, for example, 349 + ... + 648.

It is an arithmetic number, because the mean of its divisors is an integer number (15469).

2¹⁴⁹⁵⁵⁰ is an apocalyptic number.

149550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149550 is an abundant number, since it is smaller than the sum of its proper divisors (221706).

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

149550 is a wasteful number, since it uses less digits than its factorization.

149550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 149550 is about 386.7169507534. The cubic root of 149550 is about 53.0797423090.

The spelling of 149550 in words is "one hundred forty-nine thousand, five hundred fifty".