30209801 has 2 divisors, whose sum is σ = 30209802. Its totient is φ = 30209800.

The previous prime is 30209761. The next prime is 30209819. The reversal of 30209801 is 10890203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20748025 + 9461776 = 4555^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 30209801 - 2⁶ = 30209737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30200801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104900 + 15104901.

It is an arithmetic number, because the mean of its divisors is an integer number (15104901).

Almost surely, 2^30209801 is an apocalyptic number.

It is an amenable number.

30209801 is a deficient number, since it is larger than the sum of its proper divisors (1).

30209801 is an equidigital number, since it uses as much as digits as its factorization.

30209801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 30209801 is about 5496.3443305528. The cubic root of 30209801 is about 311.4459024888.

It can be divided in two parts, 3020 and 9801, that added together give a palindrome (12821).

The spelling of 30209801 in words is "thirty million, two hundred nine thousand, eight hundred one".