30112149 has 4 divisors (see below), whose sum is σ = 40149536. Its totient is φ = 20074764.

The previous prime is 30112139. The next prime is 30112157. The reversal of 30112149 is 94121103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30112149 - 2⁴ = 30112133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5018689 + ... + 5018694.

It is an arithmetic number, because the mean of its divisors is an integer number (10037384).

Almost surely, 2^30112149 is an apocalyptic number.

It is an amenable number.

30112149 is a deficient number, since it is larger than the sum of its proper divisors (10037387).

30112149 is a wasteful number, since it uses less digits than its factorization.

30112149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10037386.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 30112149 is about 5487.4537811265. The cubic root of 30112149 is about 311.1099613572.

The spelling of 30112149 in words is "thirty million, one hundred twelve thousand, one hundred forty-nine".