149868550 has 24 divisors (see below), whose sum is σ = 300199536. Its totient is φ = 55335840.

The previous prime is 149868541. The next prime is 149868581. The reversal of 149868550 is 55868941.

It is a self number, because there is not a number n which added to its sum of digits gives 149868550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114634 + ... + 115933.

It is an arithmetic number, because the mean of its divisors is an integer number (12508314).

Almost surely, 2^149868550 is an apocalyptic number.

149868550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149868550 is an abundant number, since it is smaller than the sum of its proper divisors (150330986).

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

149868550 is a wasteful number, since it uses less digits than its factorization.

149868550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230592 (or 230587 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 149868550 is about 12242.0811139283. The cubic root of 149868550 is about 531.1740320438.

The spelling of 149868550 in words is "one hundred forty-nine million, eight hundred sixty-eight thousand, five hundred fifty".