1200946969 has 2 divisors, whose sum is σ = 1200946970. Its totient is φ = 1200946968.

The previous prime is 1200946919. The next prime is 1200947021. The reversal of 1200946969 is 9696490021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161105625 + 39841344 = 34075^2 + 6312^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200946969 - 2⁷ = 1200946841 is a prime.

It is a super-2 number, since 2×1200946969² = 2884547244700573922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200946919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600473484 + 600473485.

It is an arithmetic number, because the mean of its divisors is an integer number (600473485).

Almost surely, 2^1200946969 is an apocalyptic number.

It is an amenable number.

1200946969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200946969 is an equidigital number, since it uses as much as digits as its factorization.

1200946969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1200946969 is about 34654.6817760602. The cubic root of 1200946969 is about 1062.9380247752.

The spelling of 1200946969 in words is "one billion, two hundred million, nine hundred forty-six thousand, nine hundred sixty-nine".