30547144 has 8 divisors (see below), whose sum is σ = 57275910. Its totient is φ = 15273568.

The previous prime is 30547093. The next prime is 30547159. The reversal of 30547144 is 44174503.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 407044 = 5490^2 + 638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1909189 + ... + 1909204.

Almost surely, 2^30547144 is an apocalyptic number.

It is an amenable number.

30547144 is a deficient number, since it is larger than the sum of its proper divisors (26728766).

30547144 is a wasteful number, since it uses less digits than its factorization.

30547144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818399 (or 3818395 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 30547144 is about 5526.9470777275. The cubic root of 30547144 is about 312.6008856139.

The spelling of 30547144 in words is "thirty million, five hundred forty-seven thousand, one hundred forty-four".