123470136 has 128 divisors (see below), whose sum is σ = 355622400. Its totient is φ = 39674880.

The previous prime is 123470129. The next prime is 123470153. The reversal of 123470136 is 631074321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272840 + ... + 1272936.

It is an arithmetic number, because the mean of its divisors is an integer number (2778300).

Almost surely, 2^123470136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123470136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177811200).

123470136 is an abundant number, since it is smaller than the sum of its proper divisors (232152264).

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

123470136 is a wasteful number, since it uses less digits than its factorization.

123470136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 123470136 is about 11111.7116593259. The cubic root of 123470136 is about 497.9518025644.

The spelling of 123470136 in words is "one hundred twenty-three million, four hundred seventy thousand, one hundred thirty-six".