123087516 has 24 divisors (see below), whose sum is σ = 287383824. Its totient is φ = 41003520.

The previous prime is 123087473. The next prime is 123087521. The reversal of 123087516 is 615780321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34806 + ... + 38178.

It is an arithmetic number, because the mean of its divisors is an integer number (11974326).

Almost surely, 2^123087516 is an apocalyptic number.

It is an amenable number.

123087516 is an abundant number, since it is smaller than the sum of its proper divisors (164296308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123087516 is a wasteful number, since it uses less digits than its factorization.

123087516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421 (or 6419 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 123087516 is about 11094.4813308239. The cubic root of 123087516 is about 497.4369048709.

The spelling of 123087516 in words is "one hundred twenty-three million, eighty-seven thousand, five hundred sixteen".