126241161142621 has 4 divisors (see below), whose sum is σ = 144275612734432. Its totient is φ = 108206709550812.

The previous prime is 126241161142619. The next prime is 126241161142631.

126241161142621 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 a cyclic number.

It is not a de Polignac number, because 126241161142621 - 2¹ = 126241161142619 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 (126241161142601) 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, 9017225795895 + ... + 9017225795908.

It is an arithmetic number, because the mean of its divisors is an integer number (36068903183608).

Almost surely, 2^{126241161142621} is an apocalyptic number.

It is an amenable number.

126241161142621 is a deficient number, since it is larger than the sum of its proper divisors (18034451591811).

126241161142621 is an equidigital number, since it uses as much as digits as its factorization.

126241161142621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034451591810.

The product of its digits is 55296, while the sum is 40.

The spelling of 126241161142621 in words is "one hundred twenty-six trillion, two hundred forty-one billion, one hundred sixty-one million, one hundred forty-two thousand, six hundred twenty-one".