1123455679 has 16 divisors (see below), whose sum is σ = 1201788000. Its totient is φ = 1048166784.

The previous prime is 1123455673. The next prime is 1123455689. The reversal of 1123455679 is 9765543211.

It is not a de Polignac number, because 1123455679 - 2⁷ = 1123455551 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 (1123455673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156364 + ... + 163390.

It is an arithmetic number, because the mean of its divisors is an integer number (75111750).

Almost surely, 2^1123455679 is an apocalyptic number.

1123455679 is a deficient number, since it is larger than the sum of its proper divisors (78332321).

1123455679 is a wasteful number, since it uses less digits than its factorization.

1123455679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242.

The product of its digits is 226800, while the sum is 43.

The square root of 1123455679 is about 33517.9903783028. The cubic root of 1123455679 is about 1039.5657947655.

The spelling of 1123455679 in words is "one billion, one hundred twenty-three million, four hundred fifty-five thousand, six hundred seventy-nine".