87126061003 has 4 divisors (see below), whose sum is σ = 87127942248. Its totient is φ = 87124179760.

The previous prime is 87126060977. The next prime is 87126061019. The reversal of 87126061003 is 30016062178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87126061003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87126061003.

It is not an unprimeable number, because it can be changed into a prime (87126061073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869353 + ... + 964378.

It is an arithmetic number, because the mean of its divisors is an integer number (21781985562).

Almost surely, 2^87126061003 is an apocalyptic number.

87126061003 is a deficient number, since it is larger than the sum of its proper divisors (1881245).

87126061003 is a wasteful number, since it uses less digits than its factorization.

87126061003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881244.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 87126061003 in words is "eighty-seven billion, one hundred twenty-six million, sixty-one thousand, three".