30144449 has 2 divisors, whose sum is σ = 30144450. Its totient is φ = 30144448.

The previous prime is 30144407. The next prime is 30144487. The reversal of 30144449 is 94444103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 10608049 = 4420^2 + 3257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30144449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30144649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15072224 + 15072225.

It is an arithmetic number, because the mean of its divisors is an integer number (15072225).

Almost surely, 2^30144449 is an apocalyptic number.

It is an amenable number.

30144449 is a deficient number, since it is larger than the sum of its proper divisors (1).

30144449 is an equidigital number, since it uses as much as digits as its factorization.

30144449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30144449 is about 5490.3960695017. The cubic root of 30144449 is about 311.2211596746.

The spelling of 30144449 in words is "thirty million, one hundred forty-four thousand, four hundred forty-nine".