23161790 has 8 divisors (see below), whose sum is σ = 41691240. Its totient is φ = 9264712.

The previous prime is 23161783. The next prime is 23161793. The reversal of 23161790 is 9716132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161793) 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, 1158080 + ... + 1158099.

It is an arithmetic number, because the mean of its divisors is an integer number (5211405).

Almost surely, 2^23161790 is an apocalyptic number.

23161790 is a deficient number, since it is larger than the sum of its proper divisors (18529450).

23161790 is a wasteful number, since it uses less digits than its factorization.

23161790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316186.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 23161790 is about 4812.6697372664. The cubic root of 23161790 is about 285.0519654909.

The spelling of 23161790 in words is "twenty-three million, one hundred sixty-one thousand, seven hundred ninety".