124326145661 has 4 divisors (see below), whose sum is σ = 124606792032. Its totient is φ = 124045499292.

The previous prime is 124326145651. The next prime is 124326145681. The reversal of 124326145661 is 166541623421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 166541623421 = 347591 ⋅479131.

It is a cyclic number.

It is not a de Polignac number, because 124326145661 - 2²² = 124321951357 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 (124326145651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140322521 + ... + 140323406.

It is an arithmetic number, because the mean of its divisors is an integer number (31151698008).

Almost surely, 2^124326145661 is an apocalyptic number.

It is an amenable number.

124326145661 is a deficient number, since it is larger than the sum of its proper divisors (280646371).

124326145661 is an equidigital number, since it uses as much as digits as its factorization.

124326145661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280646370.

The product of its digits is 207360, while the sum is 41.

The spelling of 124326145661 in words is "one hundred twenty-four billion, three hundred twenty-six million, one hundred forty-five thousand, six hundred sixty-one".