149512530 has 16 divisors (see below), whose sum is σ = 358830144. Its totient is φ = 39870000.

The previous prime is 149512511. The next prime is 149512543. The reversal of 149512530 is 35215941.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4983751 = 149512530 / (1 + 4 + 9 + 5 + 1 + 2 + 5 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491846 + ... + 2491905.

It is an arithmetic number, because the mean of its divisors is an integer number (22426884).

Almost surely, 2^149512530 is an apocalyptic number.

149512530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149512530 is an abundant number, since it is smaller than the sum of its proper divisors (209317614).

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

149512530 is a wasteful number, since it uses less digits than its factorization.

149512530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983761.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 149512530 is about 12227.5316397055. The cubic root of 149512530 is about 530.7530886629.

The spelling of 149512530 in words is "one hundred forty-nine million, five hundred twelve thousand, five hundred thirty".