126047879 has 4 divisors (see below), whose sum is σ = 126603384. Its totient is φ = 125492376.

The previous prime is 126047839. The next prime is 126047903. The reversal of 126047879 is 978740621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978740621 = 149 ⋅6568729.

It is a cyclic number.

It is not a de Polignac number, because 126047879 - 2¹² = 126043783 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 (126047839) 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, 277412 + ... + 277865.

It is an arithmetic number, because the mean of its divisors is an integer number (31650846).

Almost surely, 2^126047879 is an apocalyptic number.

126047879 is a deficient number, since it is larger than the sum of its proper divisors (555505).

126047879 is an equidigital number, since it uses as much as digits as its factorization.

126047879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555504.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 126047879 is about 11227.1046579249. The cubic root of 126047879 is about 501.3932859025.

The spelling of 126047879 in words is "one hundred twenty-six million, forty-seven thousand, eight hundred seventy-nine".