320774141 has 2 divisors, whose sum is σ = 320774142. Its totient is φ = 320774140.

The previous prime is 320774137. The next prime is 320774147. The reversal of 320774141 is 141477023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187279225 + 133494916 = 13685^2 + 11554^2 .

It is a cyclic number.

It is not a de Polignac number, because 320774141 - 2² = 320774137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320774147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160387070 + 160387071.

It is an arithmetic number, because the mean of its divisors is an integer number (160387071).

Almost surely, 2^320774141 is an apocalyptic number.

It is an amenable number.

320774141 is a deficient number, since it is larger than the sum of its proper divisors (1).

320774141 is an equidigital number, since it uses as much as digits as its factorization.

320774141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 320774141 is about 17910.1686480055. The cubic root of 320774141 is about 684.5415021889.

The spelling of 320774141 in words is "three hundred twenty million, seven hundred seventy-four thousand, one hundred forty-one".