30144461 has 4 divisors (see below), whose sum is σ = 30183552. Its totient is φ = 30105372.

The previous prime is 30144449. The next prime is 30144487. The reversal of 30144461 is 16444103.

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 a cyclic number.

It is not a de Polignac number, because 30144461 - 2¹⁰ = 30143437 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 (30143461) 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, 18365 + ... + 19938.

It is an arithmetic number, because the mean of its divisors is an integer number (7545888).

Almost surely, 2^30144461 is an apocalyptic number.

It is an amenable number.

30144461 is a deficient number, since it is larger than the sum of its proper divisors (39091).

30144461 is an equidigital number, since it uses as much as digits as its factorization.

30144461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39090.

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

The square root of 30144461 is about 5490.3971623190. The cubic root of 30144461 is about 311.2212009719.

Adding to 30144461 its reverse (16444103), we get a palindrome (46588564).

The spelling of 30144461 in words is "thirty million, one hundred forty-four thousand, four hundred sixty-one".