123136248 has 32 divisors (see below), whose sum is σ = 309571200. Its totient is φ = 40814688.

The previous prime is 123136187. The next prime is 123136249. The reversal of 123136248 is 842631321.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123136249) 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, 10036 + ... + 18627.

It is an arithmetic number, because the mean of its divisors is an integer number (9674100).

Almost surely, 2^123136248 is an apocalyptic number.

It is an amenable number.

123136248 is an abundant number, since it is smaller than the sum of its proper divisors (186434952).

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

123136248 is a wasteful number, since it uses less digits than its factorization.

123136248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28851 (or 28847 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 123136248 is about 11096.6773405376. The cubic root of 123136248 is about 497.5025435255.

Adding to 123136248 its reverse (842631321), we get a palindrome (965767569).

It can be divided in two parts, 12 and 3136248, that added together give a triangular number (3136260 = T₂₅₀₄).

The spelling of 123136248 in words is "one hundred twenty-three million, one hundred thirty-six thousand, two hundred forty-eight".