123419389 has 8 divisors (see below), whose sum is σ = 130790520. Its totient is φ = 116256000.

The previous prime is 123419369. The next prime is 123419399. The reversal of 123419389 is 983914321.

It can be written as a sum of positive squares in 4 ways, for example, as 2199289 + 121220100 = 1483^2 + 11010^2 .

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 123419389 - 2⁹ = 123418877 is a prime.

It is a super-2 number, since 2×123419389² = 30464691162266642, which contains 22 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 (123419369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50712 + ... + 53089.

It is an arithmetic number, because the mean of its divisors is an integer number (16348815).

Almost surely, 2^123419389 is an apocalyptic number.

It is an amenable number.

123419389 is a deficient number, since it is larger than the sum of its proper divisors (7371131).

123419389 is a wasteful number, since it uses less digits than its factorization.

123419389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103871.

The product of its digits is 46656, while the sum is 40.

The square root of 123419389 is about 11109.4279330666. The cubic root of 123419389 is about 497.8835727783.

The spelling of 123419389 in words is "one hundred twenty-three million, four hundred nineteen thousand, three hundred eighty-nine".