320627137 has 2 divisors, whose sum is σ = 320627138. Its totient is φ = 320627136.

The previous prime is 320627129. The next prime is 320627143. The reversal of 320627137 is 731726023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213276816 + 107350321 = 14604^2 + 10361^2 .

It is a cyclic number.

It is not a de Polignac number, because 320627137 - 2³ = 320627129 is a prime.

It is equal to p_17307193 and since 320627137 and 17307193 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 320627099 and 320627108.

It is not a weakly prime, because it can be changed into another prime (320621137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160313568 + 160313569.

It is an arithmetic number, because the mean of its divisors is an integer number (160313569).

Almost surely, 2^320627137 is an apocalyptic number.

It is an amenable number.

320627137 is a deficient number, since it is larger than the sum of its proper divisors (1).

320627137 is an equidigital number, since it uses as much as digits as its factorization.

320627137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 320627137 is about 17906.0642520907. The cubic root of 320627137 is about 684.4369159164.

The spelling of 320627137 in words is "three hundred twenty million, six hundred twenty-seven thousand, one hundred thirty-seven".