149285100 has 144 divisors (see below), whose sum is σ = 452783520. Its totient is φ = 37939200.

The previous prime is 149285089. The next prime is 149285107. The reversal of 149285100 is 1582941.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (149285107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 651786 + ... + 652014.

It is an arithmetic number, because the mean of its divisors is an integer number (3144330).

Almost surely, 2^149285100 is an apocalyptic number.

149285100 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 149285100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226391760).

149285100 is an abundant number, since it is smaller than the sum of its proper divisors (303498420).

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

149285100 is a wasteful number, since it uses less digits than its factorization.

149285100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 149285100 is about 12218.2281857886. The cubic root of 149285100 is about 530.4838349042.

The spelling of 149285100 in words is "one hundred forty-nine million, two hundred eighty-five thousand, one hundred".