124159696433809 has 3 divisors (see below), whose sum is σ = 124159707576507. Its totient is φ = 124159685291112.

The previous prime is 124159696433783. The next prime is 124159696433819. The reversal of 124159696433809 is 908334696951421.

The square root of 124159696433809 is 11142697.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 39068812755025 + 85090883678784 = 6250505^2 + 9224472^2 .

It is not a de Polignac number, because 124159696433809 - 2¹⁹ = 124159695909521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124159696433819) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5571349 + ... + 16714045.

It is an arithmetic number, because the mean of its divisors is an integer number (41386569192169).

Almost surely, 2^{124159696433809} is an apocalyptic number.

124159696433809 is the 11142697-th square number.

124159696433809 is the 5571349-th centered octagonal number.

It is an amenable number.

124159696433809 is a deficient number, since it is larger than the sum of its proper divisors (11142698).

124159696433809 is an frugal number, since it uses more digits than its factorization.

124159696433809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22285394 (or 11142697 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 70.

The spelling of 124159696433809 in words is "one hundred twenty-four trillion, one hundred fifty-nine billion, six hundred ninety-six million, four hundred thirty-three thousand, eight hundred nine".