149999364 has 120 divisors (see below), whose sum is σ = 420606648. Its totient is φ = 46448640.

The previous prime is 149999363. The next prime is 149999371. The reversal of 149999364 is 463999941.

149999364 is a `hidden beast` number, since 1 + 499 + 9 + 93 + 64 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17288964 + 132710400 = 4158^2 + 11520^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 149999364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149999363) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 622284 + ... + 622524.

Almost surely, 2^149999364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149999364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210303324).

149999364 is an abundant number, since it is smaller than the sum of its proper divisors (270607284).

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

149999364 is a wasteful number, since it uses less digits than its factorization.

149999364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 376 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 149999364 is about 12247.4227492971. The cubic root of 149999364 is about 531.3285336449.

The spelling of 149999364 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, three hundred sixty-four".