126870671 has 4 divisors (see below), whose sum is σ = 127230432. Its totient is φ = 126510912.

The previous prime is 126870647. The next prime is 126870697. The reversal of 126870671 is 176078621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176078621 = 167 ⋅1054363.

It is a cyclic number.

It is not a de Polignac number, because 126870671 - 2⁶ = 126870607 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 (126870871) 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, 179351 + ... + 180056.

It is an arithmetic number, because the mean of its divisors is an integer number (31807608).

Almost surely, 2^126870671 is an apocalyptic number.

126870671 is a deficient number, since it is larger than the sum of its proper divisors (359761).

126870671 is an equidigital number, since it uses as much as digits as its factorization.

126870671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359760.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 126870671 is about 11263.6881615215. The cubic root of 126870671 is about 502.4818880793.

The spelling of 126870671 in words is "one hundred twenty-six million, eight hundred seventy thousand, six hundred seventy-one".