126630437 has 2 divisors, whose sum is σ = 126630438. Its totient is φ = 126630436.

The previous prime is 126630419. The next prime is 126630451. The reversal of 126630437 is 734036621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125305636 + 1324801 = 11194^2 + 1151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126630437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126630457) 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, 63315218 + 63315219.

It is an arithmetic number, because the mean of its divisors is an integer number (63315219).

Almost surely, 2^126630437 is an apocalyptic number.

It is an amenable number.

126630437 is a deficient number, since it is larger than the sum of its proper divisors (1).

126630437 is an equidigital number, since it uses as much as digits as its factorization.

126630437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 126630437 is about 11253.0190171349. The cubic root of 126630437 is about 502.1645320801.

The spelling of 126630437 in words is "one hundred twenty-six million, six hundred thirty thousand, four hundred thirty-seven".