149566530 has 64 divisors (see below), whose sum is σ = 369515520. Its totient is φ = 38727936.

The previous prime is 149566523. The next prime is 149566559. The reversal of 149566530 is 35665941.

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 31 ways as a sum of consecutive naturals, for example, 172879 + ... + 173741.

It is an arithmetic number, because the mean of its divisors is an integer number (5773680).

Almost surely, 2^149566530 is an apocalyptic number.

149566530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149566530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184757760).

149566530 is an abundant number, since it is smaller than the sum of its proper divisors (219948990).

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

149566530 is a wasteful number, since it uses less digits than its factorization.

149566530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 149566530 is about 12229.7395720432. The cubic root of 149566530 is about 530.8169789982.

The spelling of 149566530 in words is "one hundred forty-nine million, five hundred sixty-six thousand, five hundred thirty".