23161567 has 8 divisors (see below), whose sum is σ = 27210960. Its totient is φ = 19436160.

The previous prime is 23161561. The next prime is 23161577. The reversal of 23161567 is 76516132.

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

It is a cyclic number.

It is not a de Polignac number, because 23161567 - 2³ = 23161559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80842 + ... + 81127.

It is an arithmetic number, because the mean of its divisors is an integer number (3401370).

Almost surely, 2^23161567 is an apocalyptic number.

23161567 is a deficient number, since it is larger than the sum of its proper divisors (4049393).

23161567 is a wasteful number, since it uses less digits than its factorization.

23161567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161993.

The product of its digits is 7560, while the sum is 31.

The square root of 23161567 is about 4812.6465691966. The cubic root of 23161567 is about 285.0510506683.

Adding to 23161567 its reverse (76516132), we get a palindrome (99677699).

It can be divided in two parts, 2316 and 1567, that added together give a palindrome (3883).

The spelling of 23161567 in words is "twenty-three million, one hundred sixty-one thousand, five hundred sixty-seven".