126830071 has 4 divisors (see below), whose sum is σ = 127170472. Its totient is φ = 126489672.

The previous prime is 126830057. The next prime is 126830087. The reversal of 126830071 is 170038621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170038621 = 47 ⋅3617843.

It is a cyclic number.

It is not a de Polignac number, because 126830071 - 2⁷ = 126829943 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 (126830771) 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, 169641 + ... + 170386.

It is an arithmetic number, because the mean of its divisors is an integer number (31792618).

Almost surely, 2^126830071 is an apocalyptic number.

126830071 is a deficient number, since it is larger than the sum of its proper divisors (340401).

126830071 is an equidigital number, since it uses as much as digits as its factorization.

126830071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340400.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 126830071 is about 11261.8857657144. The cubic root of 126830071 is about 502.4282824639.

Adding to 126830071 its reverse (170038621), we get a palindrome (296868692).

The spelling of 126830071 in words is "one hundred twenty-six million, eight hundred thirty thousand, seventy-one".