123169487 has 6 divisors (see below), whose sum is σ = 143278848. Its totient is φ = 105573804.

The previous prime is 123169481. The next prime is 123169489. The reversal of 123169487 is 784961321.

It is not a de Polignac number, because 123169487 - 2²⁶ = 56060623 is a prime.

It is a super-3 number, since 3×123169487³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123169481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1256783 + ... + 1256880.

It is an arithmetic number, because the mean of its divisors is an integer number (23879808).

Almost surely, 2^123169487 is an apocalyptic number.

123169487 is a deficient number, since it is larger than the sum of its proper divisors (20109361).

123169487 is an equidigital number, since it uses as much as digits as its factorization.

123169487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513677 (or 2513670 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 123169487 is about 11098.1749400521. The cubic root of 123169487 is about 497.5473042400.

The spelling of 123169487 in words is "one hundred twenty-three million, one hundred sixty-nine thousand, four hundred eighty-seven".