126621713 has 8 divisors (see below), whose sum is σ = 132325248. Its totient is φ = 121043664.

The previous prime is 126621709. The next prime is 126621721. The reversal of 126621713 is 317126621.

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 126621713 - 2² = 126621709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126621793) 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, 29306 + ... + 33347.

It is an arithmetic number, because the mean of its divisors is an integer number (16540656).

Almost surely, 2^126621713 is an apocalyptic number.

It is an amenable number.

126621713 is a deficient number, since it is larger than the sum of its proper divisors (5703535).

126621713 is an equidigital number, since it uses as much as digits as its factorization.

126621713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62743.

The product of its digits is 3024, while the sum is 29.

The square root of 126621713 is about 11252.6313811481. The cubic root of 126621713 is about 502.1529998764.

The spelling of 126621713 in words is "one hundred twenty-six million, six hundred twenty-one thousand, seven hundred thirteen".