123877049 has 4 divisors (see below), whose sum is σ = 125976720. Its totient is φ = 121777380.

The previous prime is 123877021. The next prime is 123877097. The reversal of 123877049 is 940778321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123877049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123876997 and 123877015.

It is not an unprimeable number, because it can be changed into a prime (123877099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049747 + ... + 1049864.

It is an arithmetic number, because the mean of its divisors is an integer number (31494180).

Almost surely, 2^123877049 is an apocalyptic number.

It is an amenable number.

123877049 is a deficient number, since it is larger than the sum of its proper divisors (2099671).

123877049 is an equidigital number, since it uses as much as digits as its factorization.

123877049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099670.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 123877049 is about 11130.0066936188. The cubic root of 123877049 is about 498.4982258649.

It can be divided in two parts, 1238 and 77049, that added together give a palindrome (78287).

The spelling of 123877049 in words is "one hundred twenty-three million, eight hundred seventy-seven thousand, forty-nine".