30149709 has 8 divisors (see below), whose sum is σ = 41286240. Its totient is φ = 19556496.

The previous prime is 30149699. The next prime is 30149723. The reversal of 30149709 is 90794103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30149709 - 2¹² = 30145613 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30149709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30149759) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135699 + ... + 135920.

It is an arithmetic number, because the mean of its divisors is an integer number (5160780).

Almost surely, 2^30149709 is an apocalyptic number.

It is an amenable number.

30149709 is a deficient number, since it is larger than the sum of its proper divisors (11136531).

30149709 is a wasteful number, since it uses less digits than its factorization.

30149709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271659.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 30149709 is about 5490.8750668723. The cubic root of 30149709 is about 311.2392606091.

The spelling of 30149709 in words is "thirty million, one hundred forty-nine thousand, seven hundred nine".