23123554 has 4 divisors (see below), whose sum is σ = 34685334. Its totient is φ = 11561776.

The previous prime is 23123521. The next prime is 23123563. The reversal of 23123554 is 45532132.

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., 20043529 + 3080025 = 4477^2 + 1755^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5780887 + ... + 5780890.

Almost surely, 2^23123554 is an apocalyptic number.

23123554 is a deficient number, since it is larger than the sum of its proper divisors (11561780).

23123554 is a wasteful number, since it uses less digits than its factorization.

23123554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11561779.

The product of its digits is 3600, while the sum is 25.

The square root of 23123554 is about 4808.6956651466. The cubic root of 23123554 is about 284.8950223815.

Adding to 23123554 its reverse (45532132), we get a palindrome (68655686).

The spelling of 23123554 in words is "twenty-three million, one hundred twenty-three thousand, five hundred fifty-four".