126251953 has 2 divisors, whose sum is σ = 126251954. Its totient is φ = 126251952.

The previous prime is 126251863. The next prime is 126251963. The reversal of 126251953 is 359152621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125059489 + 1192464 = 11183^2 + 1092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126251953 is a prime.

It is not a weakly prime, because it can be changed into another prime (126251963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63125976 + 63125977.

It is an arithmetic number, because the mean of its divisors is an integer number (63125977).

Almost surely, 2^126251953 is an apocalyptic number.

It is an amenable number.

126251953 is a deficient number, since it is larger than the sum of its proper divisors (1).

126251953 is an equidigital number, since it uses as much as digits as its factorization.

126251953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 126251953 is about 11236.1894341454. The cubic root of 126251953 is about 501.6637285411.

The spelling of 126251953 in words is "one hundred twenty-six million, two hundred fifty-one thousand, nine hundred fifty-three".