126551303 has 2 divisors, whose sum is σ = 126551304. Its totient is φ = 126551302.

The previous prime is 126551291. The next prime is 126551311. The reversal of 126551303 is 303155621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126551303 - 2⁴ = 126551287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126551353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63275651 + 63275652.

It is an arithmetic number, because the mean of its divisors is an integer number (63275652).

Almost surely, 2^126551303 is an apocalyptic number.

126551303 is a deficient number, since it is larger than the sum of its proper divisors (1).

126551303 is an equidigital number, since it uses as much as digits as its factorization.

126551303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 126551303 is about 11249.5023445484. The cubic root of 126551303 is about 502.0599059210.

The spelling of 126551303 in words is "one hundred twenty-six million, five hundred fifty-one thousand, three hundred three".