123860287 has 8 divisors (see below), whose sum is σ = 126089136. Its totient is φ = 121642752.

The previous prime is 123860251. The next prime is 123860309. The reversal of 123860287 is 782068321.

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 123860287 - 2¹¹ = 123858239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123860207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21033 + ... + 26269.

It is an arithmetic number, because the mean of its divisors is an integer number (15761142).

Almost surely, 2^123860287 is an apocalyptic number.

123860287 is a deficient number, since it is larger than the sum of its proper divisors (2228849).

123860287 is an equidigital number, since it uses as much as digits as its factorization.

123860287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 123860287 is about 11129.2536587140. The cubic root of 123860287 is about 498.4757406555.

The spelling of 123860287 in words is "one hundred twenty-three million, eight hundred sixty thousand, two hundred eighty-seven".