126282621 has 4 divisors (see below), whose sum is σ = 168376832. Its totient is φ = 84188412.

The previous prime is 126282619. The next prime is 126282631.

126282621 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126282621 - 2¹ = 126282619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126282601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21047101 + ... + 21047106.

It is an arithmetic number, because the mean of its divisors is an integer number (42094208).

Almost surely, 2^126282621 is an apocalyptic number.

It is an amenable number.

126282621 is a deficient number, since it is larger than the sum of its proper divisors (42094211).

126282621 is an equidigital number, since it uses as much as digits as its factorization.

126282621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094210.

The product of its digits is 4608, while the sum is 30.

The square root of 126282621 is about 11237.5540488133. The cubic root of 126282621 is about 501.7043451475.

The spelling of 126282621 in words is "one hundred twenty-six million, two hundred eighty-two thousand, six hundred twenty-one".