23119405 has 16 divisors (see below), whose sum is σ = 29677104. Its totient is φ = 17228800.

The previous prime is 23119391. The next prime is 23119451. The reversal of 23119405 is 50491132.

It can be written as a sum of positive squares in 8 ways, for example, as 2353156 + 20766249 = 1534^2 + 4557^2 .

It is not a de Polignac number, because 23119405 - 2⁵ = 23119373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23119405.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 7239 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (1854819).

Almost surely, 2^23119405 is an apocalyptic number.

It is an amenable number.

23119405 is a deficient number, since it is larger than the sum of its proper divisors (6557699).

23119405 is a wasteful number, since it uses less digits than its factorization.

23119405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 23119405 is about 4808.2642398271. The cubic root of 23119405 is about 284.8779820345.

The spelling of 23119405 in words is "twenty-three million, one hundred nineteen thousand, four hundred five".