126741487 has 4 divisors (see below), whose sum is σ = 127449720. Its totient is φ = 126033256.

The previous prime is 126741481. The next prime is 126741491. The reversal of 126741487 is 784147621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126741487 - 2¹⁵ = 126708719 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126741481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353848 + ... + 354205.

It is an arithmetic number, because the mean of its divisors is an integer number (31862430).

Almost surely, 2^126741487 is an apocalyptic number.

126741487 is a deficient number, since it is larger than the sum of its proper divisors (708233).

126741487 is an equidigital number, since it uses as much as digits as its factorization.

126741487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708232.

The product of its digits is 75264, while the sum is 40.

The square root of 126741487 is about 11257.9521672460. The cubic root of 126741487 is about 502.3112821537.

It can be divided in two parts, 12674 and 1487, that added together give a square (14161 = 119²).

The spelling of 126741487 in words is "one hundred twenty-six million, seven hundred forty-one thousand, four hundred eighty-seven".