321141137 has 2 divisors, whose sum is σ = 321141138. Its totient is φ = 321141136.

The previous prime is 321141113. The next prime is 321141143. The reversal of 321141137 is 731141123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243859456 + 77281681 = 15616^2 + 8791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321141137 is a prime.

It is not a weakly prime, because it can be changed into another prime (321141937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160570568 + 160570569.

It is an arithmetic number, because the mean of its divisors is an integer number (160570569).

Almost surely, 2^321141137 is an apocalyptic number.

It is an amenable number.

321141137 is a deficient number, since it is larger than the sum of its proper divisors (1).

321141137 is an equidigital number, since it uses as much as digits as its factorization.

321141137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 321141137 is about 17920.4111838987. The cubic root of 321141137 is about 684.8024627983.

The spelling of 321141137 in words is "three hundred twenty-one million, one hundred forty-one thousand, one hundred thirty-seven".