126546551 has 2 divisors, whose sum is σ = 126546552. Its totient is φ = 126546550.

The previous prime is 126546547. The next prime is 126546577. The reversal of 126546551 is 155645621.

It is a weak prime.

It is an emirp because it is prime and its reverse (155645621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126546551 - 2² = 126546547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126546151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63273275 + 63273276.

It is an arithmetic number, because the mean of its divisors is an integer number (63273276).

Almost surely, 2^126546551 is an apocalyptic number.

126546551 is a deficient number, since it is larger than the sum of its proper divisors (1).

126546551 is an equidigital number, since it uses as much as digits as its factorization.

126546551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 126546551 is about 11249.2911332226. The cubic root of 126546551 is about 502.0536217278.

The spelling of 126546551 in words is "one hundred twenty-six million, five hundred forty-six thousand, five hundred fifty-one".