123445677 has 4 divisors (see below), whose sum is σ = 164594240. Its totient is φ = 82297116.

The previous prime is 123445667. The next prime is 123445681. The reversal of 123445677 is 776544321.

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 not a de Polignac number, because 123445677 - 2⁶ = 123445613 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123445657) 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, 20574277 + ... + 20574282.

It is an arithmetic number, because the mean of its divisors is an integer number (41148560).

Almost surely, 2^123445677 is an apocalyptic number.

It is an amenable number.

123445677 is a deficient number, since it is larger than the sum of its proper divisors (41148563).

123445677 is an equidigital number, since it uses as much as digits as its factorization.

123445677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41148562.

The product of its digits is 141120, while the sum is 39.

The square root of 123445677 is about 11110.6110093010. The cubic root of 123445677 is about 497.9189195590.

Adding to 123445677 its reverse (776544321), we get a palindrome (899989998).

The spelling of 123445677 in words is "one hundred twenty-three million, four hundred forty-five thousand, six hundred seventy-seven".