1237672049 has 2 divisors, whose sum is σ = 1237672050. Its totient is φ = 1237672048.

The previous prime is 1237672019. The next prime is 1237672057. The reversal of 1237672049 is 9402767321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923248225 + 314423824 = 30385^2 + 17732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1237672049 - 2²⁰ = 1236623473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1237671997 and 1237672015.

It is not a weakly prime, because it can be changed into another prime (1237672019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618836024 + 618836025.

It is an arithmetic number, because the mean of its divisors is an integer number (618836025).

Almost surely, 2^1237672049 is an apocalyptic number.

It is an amenable number.

1237672049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1237672049 is an equidigital number, since it uses as much as digits as its factorization.

1237672049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1237672049 is about 35180.5635116892. The cubic root of 1237672049 is about 1073.6643369017.

The spelling of 1237672049 in words is "one billion, two hundred thirty-seven million, six hundred seventy-two thousand, forty-nine".