123755378 has 4 divisors (see below), whose sum is σ = 185633070. Its totient is φ = 61877688.

The previous prime is 123755369. The next prime is 123755399. The reversal of 123755378 is 873557321.

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

It can be written as a sum of positive squares in only one way, i.e., 105411289 + 18344089 = 10267^2 + 4283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30938843 + ... + 30938846.

Almost surely, 2^123755378 is an apocalyptic number.

123755378 is a deficient number, since it is larger than the sum of its proper divisors (61877692).

123755378 is an equidigital number, since it uses as much as digits as its factorization.

123755378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61877691.

The product of its digits is 176400, while the sum is 41.

The square root of 123755378 is about 11124.5394511413. The cubic root of 123755378 is about 498.3349654748.

The spelling of 123755378 in words is "one hundred twenty-three million, seven hundred fifty-five thousand, three hundred seventy-eight".