126551479 has 2 divisors, whose sum is σ = 126551480. Its totient is φ = 126551478.

The previous prime is 126551473. The next prime is 126551501. The reversal of 126551479 is 974155621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126551479 - 2⁷ = 126551351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126551473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63275739 + 63275740.

It is an arithmetic number, because the mean of its divisors is an integer number (63275740).

Almost surely, 2^126551479 is an apocalyptic number.

126551479 is a deficient number, since it is larger than the sum of its proper divisors (1).

126551479 is an equidigital number, since it uses as much as digits as its factorization.

126551479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 126551479 is about 11249.5101671139. The cubic root of 126551479 is about 502.0601386659.

The spelling of 126551479 in words is "one hundred twenty-six million, five hundred fifty-one thousand, four hundred seventy-nine".