30154149 has 24 divisors (see below), whose sum is σ = 45313632. Its totient is φ = 19306080.

The previous prime is 30154139. The next prime is 30154151. The reversal of 30154149 is 94145103.

It is not a de Polignac number, because 30154149 - 2⁹ = 30153637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30154129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27094 + ... + 28184.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^30154149 is an apocalyptic number.

It is an amenable number.

30154149 is a deficient number, since it is larger than the sum of its proper divisors (15159483).

30154149 is a wasteful number, since it uses less digits than its factorization.

30154149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 30154149 is about 5491.2793591293. The cubic root of 30154149 is about 311.2545380864.

It can be divided in two parts, 30154 and 149, that added together give a palindrome (30303).

The spelling of 30154149 in words is "thirty million, one hundred fifty-four thousand, one hundred forty-nine".