126282321 has 20 divisors (see below), whose sum is σ = 205794864. Its totient is φ = 76534200.

The previous prime is 126282311. The next prime is 126282349. The reversal of 126282321 is 123282621.

126282321 is a `hidden beast` number, since 1 + 2 + 628 + 2 + 32 + 1 = 666.

It is not a de Polignac number, because 126282321 - 2¹⁰ = 126281297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126282311) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69975 + ... + 71756.

Almost surely, 2^126282321 is an apocalyptic number.

126282321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126282321 is a deficient number, since it is larger than the sum of its proper divisors (79512543).

126282321 is a wasteful number, since it uses less digits than its factorization.

126282321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141754 (or 141745 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 126282321 is about 11237.5407007049. The cubic root of 126282321 is about 501.7039478603.

The spelling of 126282321 in words is "one hundred twenty-six million, two hundred eighty-two thousand, three hundred twenty-one".