126939005459 has 4 divisors (see below), whose sum is σ = 145073149104. Its totient is φ = 108804861816.

The previous prime is 126939005449. The next prime is 126939005461. The reversal of 126939005459 is 954500939621.

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

It is not a de Polignac number, because 126939005459 - 2⁴ = 126939005443 is a prime.

It is a super-2 number, since 2×126939005459² (a number of 23 digits) contains 22 as substring.

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 126939005459.

It is not an unprimeable number, because it can be changed into a prime (126939005449) 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 in 3 ways as a sum of consecutive naturals, for example, 9067071812 + ... + 9067071825.

It is an arithmetic number, because the mean of its divisors is an integer number (36268287276).

Almost surely, 2^126939005459 is an apocalyptic number.

126939005459 is a deficient number, since it is larger than the sum of its proper divisors (18134143645).

126939005459 is an equidigital number, since it uses as much as digits as its factorization.

126939005459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18134143644.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 126939005459 in words is "one hundred twenty-six billion, nine hundred thirty-nine million, five thousand, four hundred fifty-nine".