123719064 has 64 divisors (see below), whose sum is σ = 374284800. Its totient is φ = 33268224.

The previous prime is 123719059. The next prime is 123719069. The reversal of 123719064 is 460917321.

It is an interprime number because it is at equal distance from previous prime (123719059) and next prime (123719069).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123719069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18804 + ... + 24515.

It is an arithmetic number, because the mean of its divisors is an integer number (5848200).

Almost surely, 2^123719064 is an apocalyptic number.

123719064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123719064 is an abundant number, since it is smaller than the sum of its proper divisors (250565736).

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

123719064 is a wasteful number, since it uses less digits than its factorization.

123719064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43352 (or 43348 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 123719064 is about 11122.9071739361. The cubic root of 123719064 is about 498.2862179468.

It can be divided in two parts, 1237 and 19064, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 123719064 in words is "one hundred twenty-three million, seven hundred nineteen thousand, sixty-four".