149400000 has 252 divisors, whose sum is σ = 541699704. Its totient is φ = 39360000.

The previous prime is 149399993. The next prime is 149400047. The reversal of 149400000 is 4941.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1799959 + ... + 1800041.

It is an arithmetic number, because the mean of its divisors is an integer number (2149602).

Almost surely, 2^149400000 is an apocalyptic number.

149400000 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 149400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270849852).

149400000 is an abundant number, since it is smaller than the sum of its proper divisors (392299704).

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

149400000 is an frugal number, since it uses more digits than its factorization.

149400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 149400000 is about 12222.9292724780. The cubic root of 149400000 is about 530.6198988551.

Adding to 149400000 its reverse (4941), we get a palindrome (149404941).

The spelling of 149400000 in words is "one hundred forty-nine million, four hundred thousand".