126616087 has 4 divisors (see below), whose sum is σ = 136355800. Its totient is φ = 116876376.

The previous prime is 126616043. The next prime is 126616093. The reversal of 126616087 is 780616621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780616621 = 317 ⋅2462513.

It is a cyclic number.

It is not a de Polignac number, because 126616087 - 2¹⁹ = 126091799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126616097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4869837 + ... + 4869862.

It is an arithmetic number, because the mean of its divisors is an integer number (34088950).

Almost surely, 2^126616087 is an apocalyptic number.

126616087 is a deficient number, since it is larger than the sum of its proper divisors (9739713).

126616087 is an equidigital number, since it uses as much as digits as its factorization.

126616087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739712.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 126616087 is about 11252.3813923987. The cubic root of 126616087 is about 502.1455626195.

The spelling of 126616087 in words is "one hundred twenty-six million, six hundred sixteen thousand, eighty-seven".