126153257 has 2 divisors, whose sum is σ = 126153258. Its totient is φ = 126153256.

The previous prime is 126153241. The next prime is 126153263. The reversal of 126153257 is 752351621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125865961 + 287296 = 11219^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 126153257 - 2⁴ = 126153241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126153457) 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, 63076628 + 63076629.

It is an arithmetic number, because the mean of its divisors is an integer number (63076629).

Almost surely, 2^126153257 is an apocalyptic number.

It is an amenable number.

126153257 is a deficient number, since it is larger than the sum of its proper divisors (1).

126153257 is an equidigital number, since it uses as much as digits as its factorization.

126153257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 126153257 is about 11231.7966950974. The cubic root of 126153257 is about 501.5329711953.

The spelling of 126153257 in words is "one hundred twenty-six million, one hundred fifty-three thousand, two hundred fifty-seven".