126853971 has 4 divisors (see below), whose sum is σ = 169138632. Its totient is φ = 84569312.

The previous prime is 126853933. The next prime is 126854003. The reversal of 126853971 is 179358621.

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

It is a cyclic number.

It is not a de Polignac number, because 126853971 - 2⁶ = 126853907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126854971) 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, 21142326 + ... + 21142331.

It is an arithmetic number, because the mean of its divisors is an integer number (42284658).

Almost surely, 2^126853971 is an apocalyptic number.

126853971 is a deficient number, since it is larger than the sum of its proper divisors (42284661).

126853971 is an equidigital number, since it uses as much as digits as its factorization.

126853971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42284660.

The product of its digits is 90720, while the sum is 42.

The square root of 126853971 is about 11262.9468168859. The cubic root of 126853971 is about 502.4598398637.

The spelling of 126853971 in words is "one hundred twenty-six million, eight hundred fifty-three thousand, nine hundred seventy-one".