149631300 has 540 divisors, whose sum is σ = 628592580. Its totient is φ = 30481920.

The previous prime is 149631299. The next prime is 149631337. The reversal of 149631300 is 3136941.

It can be written as a sum of positive squares in 6 ways, for example, as 15256836 + 134374464 = 3906^2 + 11592^2 .

It is a tau number, because it is divible by the number of its divisors (540).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 5159686 + ... + 5159714.

Almost surely, 2^149631300 is an apocalyptic number.

149631300 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 149631300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314296290).

149631300 is an abundant number, since it is smaller than the sum of its proper divisors (478961280).

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

149631300 is a wasteful number, since it uses less digits than its factorization.

149631300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 149631300 is about 12232.3873385370. The cubic root of 149631300 is about 530.8935916245.

The spelling of 149631300 in words is "one hundred forty-nine million, six hundred thirty-one thousand, three hundred".