30724201 has 2 divisors, whose sum is σ = 30724202. Its totient is φ = 30724200.

The previous prime is 30724189. The next prime is 30724237. The reversal of 30724201 is 10242703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 8643600 = 4699^2 + 2940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30724201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30724241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15362100 + 15362101.

It is an arithmetic number, because the mean of its divisors is an integer number (15362101).

Almost surely, 2^30724201 is an apocalyptic number.

It is an amenable number.

30724201 is a deficient number, since it is larger than the sum of its proper divisors (1).

30724201 is an equidigital number, since it uses as much as digits as its factorization.

30724201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30724201 is about 5542.9415475901. The cubic root of 30724201 is about 313.2036869961.

Adding to 30724201 its reverse (10242703), we get a palindrome (40966904).

The spelling of 30724201 in words is "thirty million, seven hundred twenty-four thousand, two hundred one".