30172001 has 2 divisors, whose sum is σ = 30172002. Its totient is φ = 30172000.

The previous prime is 30171971. The next prime is 30172013. The reversal of 30172001 is 10027103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 1442401 = 5360^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 30172001 - 2⁶ = 30171937 is a prime.

It is not a weakly prime, because it can be changed into another prime (30172081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15086000 + 15086001.

It is an arithmetic number, because the mean of its divisors is an integer number (15086001).

Almost surely, 2^30172001 is an apocalyptic number.

It is an amenable number.

30172001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30172001 is an equidigital number, since it uses as much as digits as its factorization.

30172001 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 30172001 is about 5492.9046050337. The cubic root of 30172001 is about 311.3159494237.

Adding to 30172001 its reverse (10027103), we get a palindrome (40199104).

The spelling of 30172001 in words is "thirty million, one hundred seventy-two thousand, one".