72301001 has 2 divisors, whose sum is σ = 72301002. Its totient is φ = 72301000.

The previous prime is 72300979. The next prime is 72301007. The reversal of 72301001 is 10010327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50069776 + 22231225 = 7076^2 + 4715^2 .

It is a cyclic number.

It is not a de Polignac number, because 72301001 - 2¹⁰ = 72299977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72301007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36150500 + 36150501.

It is an arithmetic number, because the mean of its divisors is an integer number (36150501).

Almost surely, 2^72301001 is an apocalyptic number.

It is an amenable number.

72301001 is a deficient number, since it is larger than the sum of its proper divisors (1).

72301001 is an equidigital number, since it uses as much as digits as its factorization.

72301001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 72301001 is about 8502.9995295778. Note that the first 3 decimals coincide. The cubic root of 72301001 is about 416.5956876072.

Adding to 72301001 its reverse (10010327), we get a palindrome (82311328).

The spelling of 72301001 in words is "seventy-two million, three hundred one thousand, one".