304731601 has 2 divisors, whose sum is σ = 304731602. Its totient is φ = 304731600.

The previous prime is 304731599. The next prime is 304731607. The reversal of 304731601 is 106137403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236421376 + 68310225 = 15376^2 + 8265^2 .

It is a cyclic number.

It is not a de Polignac number, because 304731601 - 2¹ = 304731599 is a prime.

It is a super-3 number, since 3×304731601³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 304731599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (304731607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152365800 + 152365801.

It is an arithmetic number, because the mean of its divisors is an integer number (152365801).

Almost surely, 2^304731601 is an apocalyptic number.

304731601 is the 11041-st centered pentagonal number.

It is an amenable number.

304731601 is a deficient number, since it is larger than the sum of its proper divisors (1).

304731601 is an equidigital number, since it uses as much as digits as its factorization.

304731601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 304731601 is about 17456.5632642854. The cubic root of 304731601 is about 672.9340405938.

The spelling of 304731601 in words is "three hundred four million, seven hundred thirty-one thousand, six hundred one".