304068137 has 8 divisors (see below), whose sum is σ = 322501032. Its totient is φ = 285696000.

The previous prime is 304068113. The next prime is 304068143. The reversal of 304068137 is 731860403.

It can be written as a sum of positive squares in 4 ways, for example, as 79637776 + 224430361 = 8924^2 + 14981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304068137 - 2¹² = 304064041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304061137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4664 + ... + 25097.

It is an arithmetic number, because the mean of its divisors is an integer number (40312629).

Almost surely, 2^304068137 is an apocalyptic number.

It is an amenable number.

304068137 is a deficient number, since it is larger than the sum of its proper divisors (18432895).

304068137 is a wasteful number, since it uses less digits than its factorization.

304068137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30379.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 304068137 is about 17437.5496271695. The cubic root of 304068137 is about 672.4453133348.

The spelling of 304068137 in words is "three hundred four million, sixty-eight thousand, one hundred thirty-seven".