157868123 has 8 divisors (see below), whose sum is σ = 180999648. Its totient is φ = 134881344.

The previous prime is 157868099. The next prime is 157868143. The reversal of 157868123 is 321868751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157868123 - 2¹⁶ = 157802587 is a prime.

It is a super-4 number, since 4×157868123⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157868143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33836 + ... + 38217.

It is an arithmetic number, because the mean of its divisors is an integer number (22624956).

Almost surely, 2^157868123 is an apocalyptic number.

157868123 is a deficient number, since it is larger than the sum of its proper divisors (23131525).

157868123 is an equidigital number, since it uses as much as digits as its factorization.

157868123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72373.

The product of its digits is 80640, while the sum is 41.

The square root of 157868123 is about 12564.5582095034. The cubic root of 157868123 is about 540.4615658116.

The spelling of 157868123 in words is "one hundred fifty-seven million, eight hundred sixty-eight thousand, one hundred twenty-three".