126651253 has 2 divisors, whose sum is σ = 126651254. Its totient is φ = 126651252.

The previous prime is 126651247. The next prime is 126651257. The reversal of 126651253 is 352156621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117548964 + 9102289 = 10842^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 126651253 - 2⁵ = 126651221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126651257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63325626 + 63325627.

It is an arithmetic number, because the mean of its divisors is an integer number (63325627).

Almost surely, 2^126651253 is an apocalyptic number.

It is an amenable number.

126651253 is a deficient number, since it is larger than the sum of its proper divisors (1).

126651253 is an equidigital number, since it uses as much as digits as its factorization.

126651253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 126651253 is about 11253.9438864782. The cubic root of 126651253 is about 502.1920464872.

The spelling of 126651253 in words is "one hundred twenty-six million, six hundred fifty-one thousand, two hundred fifty-three".