123454379 has 4 divisors (see below), whose sum is σ = 124342680. Its totient is φ = 122566080.

The previous prime is 123454367. The next prime is 123454411. The reversal of 123454379 is 973454321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123454379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123454339) 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 3 ways as a sum of consecutive naturals, for example, 443942 + ... + 444219.

It is an arithmetic number, because the mean of its divisors is an integer number (31085670).

Almost surely, 2^123454379 is an apocalyptic number.

123454379 is a deficient number, since it is larger than the sum of its proper divisors (888301).

123454379 is an equidigital number, since it uses as much as digits as its factorization.

123454379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888300.

The product of its digits is 90720, while the sum is 38.

The square root of 123454379 is about 11111.0026100258. The cubic root of 123454379 is about 497.9306191414.

The spelling of 123454379 in words is "one hundred twenty-three million, four hundred fifty-four thousand, three hundred seventy-nine".