126630071 has 8 divisors (see below), whose sum is σ = 130857600. Its totient is φ = 122411520.

The previous prime is 126630061. The next prime is 126630089. The reversal of 126630071 is 170036621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126630071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126630071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126630011) 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, 38375 + ... + 41543.

It is an arithmetic number, because the mean of its divisors is an integer number (16357200).

Almost surely, 2^126630071 is an apocalyptic number.

126630071 is a deficient number, since it is larger than the sum of its proper divisors (4227529).

126630071 is a wasteful number, since it uses less digits than its factorization.

126630071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 126630071 is about 11253.0027548206. The cubic root of 126630071 is about 502.1640482775.

Adding to 126630071 its reverse (170036621), we get a palindrome (296666692).

The spelling of 126630071 in words is "one hundred twenty-six million, six hundred thirty thousand, seventy-one".