149555850 has 48 divisors (see below), whose sum is σ = 380936928. Its totient is φ = 38802240.

The previous prime is 149555843. The next prime is 149555909. The reversal of 149555850 is 58555941.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7924 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (7936186).

Almost surely, 2^149555850 is an apocalyptic number.

149555850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149555850 is an abundant number, since it is smaller than the sum of its proper divisors (231381078).

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

149555850 is a wasteful number, since it uses less digits than its factorization.

149555850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26999 (or 26994 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The square root of 149555850 is about 12229.3029237156. The cubic root of 149555850 is about 530.8043441298.

Subtracting from 149555850 its reverse (58555941), we obtain a palindrome (90999909).

The spelling of 149555850 in words is "one hundred forty-nine million, five hundred fifty-five thousand, eight hundred fifty".