1274353121 has 2 divisors, whose sum is σ = 1274353122. Its totient is φ = 1274353120.

The previous prime is 1274353081. The next prime is 1274353141. The reversal of 1274353121 is 1213534721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086361600 + 187991521 = 32960^2 + 13711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1274353121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1274353141) 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, 637176560 + 637176561.

It is an arithmetic number, because the mean of its divisors is an integer number (637176561).

Almost surely, 2^1274353121 is an apocalyptic number.

It is an amenable number.

1274353121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274353121 is an equidigital number, since it uses as much as digits as its factorization.

1274353121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 1274353121 is about 35698.0828756952. The cubic root of 1274353121 is about 1084.1680275042.

Adding to 1274353121 its reverse (1213534721), we get a palindrome (2487887842).

The spelling of 1274353121 in words is "one billion, two hundred seventy-four million, three hundred fifty-three thousand, one hundred twenty-one".