1211415349 has 2 divisors, whose sum is σ = 1211415350. Its totient is φ = 1211415348.

The previous prime is 1211415269. The next prime is 1211415371. The reversal of 1211415349 is 9435141121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010286225 + 201129124 = 31785^2 + 14182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211415349 - 2⁹ = 1211414837 is a prime.

It is a super-3 number, since 3×1211415349³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211415349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211415379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605707674 + 605707675.

It is an arithmetic number, because the mean of its divisors is an integer number (605707675).

Almost surely, 2^1211415349 is an apocalyptic number.

It is an amenable number.

1211415349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211415349 is an equidigital number, since it uses as much as digits as its factorization.

1211415349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 1211415349 is about 34805.3925275955. The cubic root of 1211415349 is about 1066.0175567088.

The spelling of 1211415349 in words is "one billion, two hundred eleven million, four hundred fifteen thousand, three hundred forty-nine".