1331222953 has 2 divisors, whose sum is σ = 1331222954. Its totient is φ = 1331222952.

The previous prime is 1331222887. The next prime is 1331223001. The reversal of 1331222953 is 3592221331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151448489 + 179774464 = 33933^2 + 13408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331222953 is a prime.

It is a super-3 number, since 3×1331222953³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1331222653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665611476 + 665611477.

It is an arithmetic number, because the mean of its divisors is an integer number (665611477).

Almost surely, 2^1331222953 is an apocalyptic number.

It is an amenable number.

1331222953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331222953 is an equidigital number, since it uses as much as digits as its factorization.

1331222953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 1331222953 is about 36485.9281504527. The cubic root of 1331222953 is about 1100.0614161301.

The spelling of 1331222953 in words is "one billion, three hundred thirty-one million, two hundred twenty-two thousand, nine hundred fifty-three".