123871315 has 8 divisors (see below), whose sum is σ = 149122368. Its totient is φ = 98779200.

The previous prime is 123871303. The next prime is 123871343. The reversal of 123871315 is 513178321.

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

It is not a de Polignac number, because 123871315 - 2¹⁹ = 123347027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38011 + ... + 41140.

It is an arithmetic number, because the mean of its divisors is an integer number (18640296).

Almost surely, 2^123871315 is an apocalyptic number.

123871315 is a deficient number, since it is larger than the sum of its proper divisors (25251053).

123871315 is an equidigital number, since it uses as much as digits as its factorization.

123871315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79469.

The product of its digits is 5040, while the sum is 31.

The square root of 123871315 is about 11129.7490986994. The cubic root of 123871315 is about 498.4905342789.

The spelling of 123871315 in words is "one hundred twenty-three million, eight hundred seventy-one thousand, three hundred fifteen".