126023681 has 8 divisors (see below), whose sum is σ = 144133824. Its totient is φ = 107940240.

The previous prime is 126023663. The next prime is 126023683. The reversal of 126023681 is 186320621.

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-126023681 is a prime.

It is a super-2 number, since 2×126023681² = 31763936345579522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126023683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4751 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (18016728).

Almost surely, 2^126023681 is an apocalyptic number.

It is an amenable number.

126023681 is a deficient number, since it is larger than the sum of its proper divisors (18110143).

126023681 is a wasteful number, since it uses less digits than its factorization.

126023681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13351.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 126023681 is about 11226.0269463421. The cubic root of 126023681 is about 501.3611989122.

The spelling of 126023681 in words is "one hundred twenty-six million, twenty-three thousand, six hundred eighty-one".