123875515 has 24 divisors (see below), whose sum is σ = 160696080. Its totient is φ = 91627008.

The previous prime is 123875509. The next prime is 123875527. The reversal of 123875515 is 515578321.

It is a happy number.

It is not a de Polignac number, because 123875515 - 2⁵ = 123875483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84529 + ... + 85981.

It is an arithmetic number, because the mean of its divisors is an integer number (6695670).

Almost surely, 2^123875515 is an apocalyptic number.

123875515 is a deficient number, since it is larger than the sum of its proper divisors (36820565).

123875515 is a wasteful number, since it uses less digits than its factorization.

123875515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1534 counting only the distinct ones).

The product of its digits is 42000, while the sum is 37.

The square root of 123875515 is about 11129.9377805988. The cubic root of 123875515 is about 498.4961681810.

The spelling of 123875515 in words is "one hundred twenty-three million, eight hundred seventy-five thousand, five hundred fifteen".