30144146 has 16 divisors (see below), whose sum is σ = 47714400. Its totient is φ = 14243328.

The previous prime is 30144139. The next prime is 30144173. The reversal of 30144146 is 64144103.

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, 20690 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (2982150).

Almost surely, 2^30144146 is an apocalyptic number.

30144146 is a deficient number, since it is larger than the sum of its proper divisors (17570254).

30144146 is a wasteful number, since it uses less digits than its factorization.

30144146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 30144146 is about 5490.3684757947. The cubic root of 30144146 is about 311.2201169140.

Adding to 30144146 its reverse (64144103), we get a palindrome (94288249).

The spelling of 30144146 in words is "thirty million, one hundred forty-four thousand, one hundred forty-six".