30143741 has 2 divisors, whose sum is σ = 30143742. Its totient is φ = 30143740.

The previous prime is 30143723. The next prime is 30143759. The reversal of 30143741 is 14734103.

It is a balanced prime because it is at equal distance from previous prime (30143723) and next prime (30143759).

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 11256025 = 4346^2 + 3355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30143741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30143761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071870 + 15071871.

It is an arithmetic number, because the mean of its divisors is an integer number (15071871).

Almost surely, 2^30143741 is an apocalyptic number.

It is an amenable number.

30143741 is a deficient number, since it is larger than the sum of its proper divisors (1).

30143741 is an equidigital number, since it uses as much as digits as its factorization.

30143741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30143741 is about 5490.3315929004. The cubic root of 30143741 is about 311.2187231143.

Adding to 30143741 its reverse (14734103), we get a palindrome (44877844).

The spelling of 30143741 in words is "thirty million, one hundred forty-three thousand, seven hundred forty-one".