126241557 has 8 divisors (see below), whose sum is σ = 181269984. Its totient is φ = 77687088.

The previous prime is 126241547. The next prime is 126241559. The reversal of 126241557 is 755142621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126241557 - 2¹⁰ = 126240533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126241559) 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 in 7 ways as a sum of consecutive naturals, for example, 1618443 + ... + 1618520.

It is an arithmetic number, because the mean of its divisors is an integer number (22658748).

Almost surely, 2^126241557 is an apocalyptic number.

It is an amenable number.

126241557 is a deficient number, since it is larger than the sum of its proper divisors (55028427).

126241557 is a wasteful number, since it uses less digits than its factorization.

126241557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236979.

The product of its digits is 16800, while the sum is 33.

The square root of 126241557 is about 11235.7268122716. The cubic root of 126241557 is about 501.6499586174.

The spelling of 126241557 in words is "one hundred twenty-six million, two hundred forty-one thousand, five hundred fifty-seven".