1213063469 has 2 divisors, whose sum is σ = 1213063470. Its totient is φ = 1213063468.

The previous prime is 1213063457. The next prime is 1213063519. The reversal of 1213063469 is 9643603121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1124797444 + 88266025 = 33538^2 + 9395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213063469 - 2⁸ = 1213063213 is a prime.

It is a super-2 number, since 2×1213063469² = 2943045959644627922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213063409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606531734 + 606531735.

It is an arithmetic number, because the mean of its divisors is an integer number (606531735).

Almost surely, 2^1213063469 is an apocalyptic number.

It is an amenable number.

1213063469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213063469 is an equidigital number, since it uses as much as digits as its factorization.

1213063469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 1213063469 is about 34829.0606964931. The cubic root of 1213063469 is about 1066.5007734955.

The spelling of 1213063469 in words is "one billion, two hundred thirteen million, sixty-three thousand, four hundred sixty-nine".