3154243321 has 2 divisors, whose sum is σ = 3154243322. Its totient is φ = 3154243320.

The previous prime is 3154243289. The next prime is 3154243343. The reversal of 3154243321 is 1233424513.

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., 2178555625 + 975687696 = 46675^2 + 31236^2 .

It is a cyclic number.

It is not a de Polignac number, because 3154243321 - 2⁵ = 3154243289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3154243321.

It is not a weakly prime, because it can be changed into another prime (3154243361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577121660 + 1577121661.

It is an arithmetic number, because the mean of its divisors is an integer number (1577121661).

Almost surely, 2^3154243321 is an apocalyptic number.

It is an amenable number.

3154243321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3154243321 is an equidigital number, since it uses as much as digits as its factorization.

3154243321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 3154243321 is about 56162.6505873788. The cubic root of 3154243321 is about 1466.5551434198. Note that the first 3 decimals are identical.

Adding to 3154243321 its reverse (1233424513), we get a palindrome (4387667834).

The spelling of 3154243321 in words is "three billion, one hundred fifty-four million, two hundred forty-three thousand, three hundred twenty-one".