149800000 has 168 divisors, whose sum is σ = 428597568. Its totient is φ = 50880000.

The previous prime is 149799959. The next prime is 149800033. The reversal of 149800000 is 8941.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

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, 1399947 + ... + 1400053.

It is an arithmetic number, because the mean of its divisors is an integer number (2551176).

Almost surely, 2^149800000 is an apocalyptic number.

149800000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214298784).

149800000 is an abundant number, since it is smaller than the sum of its proper divisors (278797568).

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

149800000 is an frugal number, since it uses more digits than its factorization.

149800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 149800000 is about 12239.2810246354. The cubic root of 149800000 is about 531.0930332109.

Adding to 149800000 its reverse (8941), we get a palindrome (149808941).

The spelling of 149800000 in words is "one hundred forty-nine million, eight hundred thousand".