126782633 has 2 divisors, whose sum is σ = 126782634. Its totient is φ = 126782632.

The previous prime is 126782603. The next prime is 126782639. The reversal of 126782633 is 336287621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65739664 + 61042969 = 8108^2 + 7813^2 .

It is an emirp because it is prime and its reverse (336287621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126782633 - 2¹⁸ = 126520489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126782639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63391316 + 63391317.

It is an arithmetic number, because the mean of its divisors is an integer number (63391317).

Almost surely, 2^126782633 is an apocalyptic number.

It is an amenable number.

126782633 is a deficient number, since it is larger than the sum of its proper divisors (1).

126782633 is an equidigital number, since it uses as much as digits as its factorization.

126782633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 126782633 is about 11259.7794383371. The cubic root of 126782633 is about 502.3656339010.

The spelling of 126782633 in words is "one hundred twenty-six million, seven hundred eighty-two thousand, six hundred thirty-three".