1237216049 has 8 divisors (see below), whose sum is σ = 1246553640. Its totient is φ = 1227897216.

The previous prime is 1237216033. The next prime is 1237216051. The reversal of 1237216049 is 9406127321.

It can be written as a sum of positive squares in 4 ways, for example, as 277455649 + 959760400 = 16657^2 + 30980^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1237216049 - 2⁴ = 1237216033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1237216949) 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 in 7 ways as a sum of consecutive naturals, for example, 145487 + ... + 153755.

It is an arithmetic number, because the mean of its divisors is an integer number (155819205).

Almost surely, 2^1237216049 is an apocalyptic number.

It is an amenable number.

1237216049 is a deficient number, since it is larger than the sum of its proper divisors (9337591).

1237216049 is an equidigital number, since it uses as much as digits as its factorization.

1237216049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9379.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1237216049 is about 35174.0820633602. The cubic root of 1237216049 is about 1073.5324626900.

The spelling of 1237216049 in words is "one billion, two hundred thirty-seven million, two hundred sixteen thousand, forty-nine".