126700071 has 4 divisors (see below), whose sum is σ = 168933432. Its totient is φ = 84466712.

The previous prime is 126700009. The next prime is 126700073. The reversal of 126700071 is 170007621.

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 126700071 - 2¹⁰ = 126699047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126700073) 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, 21116676 + ... + 21116681.

It is an arithmetic number, because the mean of its divisors is an integer number (42233358).

Almost surely, 2^126700071 is an apocalyptic number.

126700071 is a deficient number, since it is larger than the sum of its proper divisors (42233361).

126700071 is an equidigital number, since it uses as much as digits as its factorization.

126700071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42233360.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 126700071 is about 11256.1126060465. The cubic root of 126700071 is about 502.2565618696.

Adding to 126700071 its reverse (170007621), we get a palindrome (296707692).

The spelling of 126700071 in words is "one hundred twenty-six million, seven hundred thousand, seventy-one".