1210402969 has 2 divisors, whose sum is σ = 1210402970. Its totient is φ = 1210402968.

The previous prime is 1210402933. The next prime is 1210402987. The reversal of 1210402969 is 9692040121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1210204944 + 198025 = 34788^2 + 445^2 .

It is an emirp because it is prime and its reverse (9692040121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210402969 - 2²⁵ = 1176848537 is a prime.

It is a super-2 number, since 2×1210402969² = 2930150694728029922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1210402769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605201484 + 605201485.

It is an arithmetic number, because the mean of its divisors is an integer number (605201485).

Almost surely, 2^1210402969 is an apocalyptic number.

It is an amenable number.

1210402969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210402969 is an equidigital number, since it uses as much as digits as its factorization.

1210402969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1210402969 is about 34790.8460517993. The cubic root of 1210402969 is about 1065.7205169341.

The spelling of 1210402969 in words is "one billion, two hundred ten million, four hundred two thousand, nine hundred sixty-nine".