149940030 has 16 divisors (see below), whose sum is σ = 359856144. Its totient is φ = 39984000.

The previous prime is 149940023. The next prime is 149940047. The reversal of 149940030 is 30049941.

149940030 = 6121² + 6122² + ... + 6124².

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: 4998001 = 149940030 / (1 + 4 + 9 + 9 + 4 + 0 + 0 + 3 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 149940030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2498971 + ... + 2499030.

It is an arithmetic number, because the mean of its divisors is an integer number (22491009).

Almost surely, 2^149940030 is an apocalyptic number.

149940030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149940030 is an abundant number, since it is smaller than the sum of its proper divisors (209916114).

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

149940030 is a wasteful number, since it uses less digits than its factorization.

149940030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4998011.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 149940030 is about 12245.0002041650. Note that the first 3 decimals coincide. The cubic root of 149940030 is about 531.2584666701.

Adding to 149940030 its reverse (30049941), we get a palindrome (179989971).

The spelling of 149940030 in words is "one hundred forty-nine million, nine hundred forty thousand, thirty".