126566071 has 8 divisors (see below), whose sum is σ = 137128464. Its totient is φ = 116350080.

The previous prime is 126566051. The next prime is 126566081. The reversal of 126566071 is 170665621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126566071 - 2⁵ = 126566039 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 (126566051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85840 + ... + 87301.

It is an arithmetic number, because the mean of its divisors is an integer number (17141058).

Almost surely, 2^126566071 is an apocalyptic number.

126566071 is a deficient number, since it is larger than the sum of its proper divisors (10562393).

126566071 is a wasteful number, since it uses less digits than its factorization.

126566071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173201.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 126566071 is about 11250.1587099916. The cubic root of 126566071 is about 502.0794345815.

The spelling of 126566071 in words is "one hundred twenty-six million, five hundred sixty-six thousand, seventy-one".