126662321 has 8 divisors (see below), whose sum is σ = 131552640. Its totient is φ = 121863568.

The previous prime is 126662317. The next prime is 126662323. The reversal of 126662321 is 123266621.

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 126662321 - 2² = 126662317 is a prime.

It is a super-2 number, since 2×126662321² = 32086687122214082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126662323) 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, 20066 + ... + 25611.

It is an arithmetic number, because the mean of its divisors is an integer number (16444080).

Almost surely, 2^126662321 is an apocalyptic number.

It is an amenable number.

126662321 is a deficient number, since it is larger than the sum of its proper divisors (4890319).

126662321 is an equidigital number, since it uses as much as digits as its factorization.

126662321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45783.

The product of its digits is 5184, while the sum is 29.

The square root of 126662321 is about 11254.4356144589. The cubic root of 126662321 is about 502.2066748453.

The spelling of 126662321 in words is "one hundred twenty-six million, six hundred sixty-two thousand, three hundred twenty-one".