22707161 has 8 divisors (see below), whose sum is σ = 23456520. Its totient is φ = 21969792.

The previous prime is 22707137. The next prime is 22707173. The reversal of 22707161 is 16170722.

It can be written as a sum of positive squares in 4 ways, for example, as 2059225 + 20647936 = 1435^2 + 4544^2 .

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 22707161 - 2¹⁰ = 22706137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22707161.

It is not an unprimeable number, because it can be changed into a prime (22707101) 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, 935 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (2932065).

Almost surely, 2^22707161 is an apocalyptic number.

It is an amenable number.

22707161 is a deficient number, since it is larger than the sum of its proper divisors (749359).

22707161 is an equidigital number, since it uses as much as digits as its factorization.

22707161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 22707161 is about 4765.2031436236. The cubic root of 22707161 is about 283.1745895852.

Adding to 22707161 its reverse (16170722), we get a palindrome (38877883).

The spelling of 22707161 in words is "twenty-two million, seven hundred seven thousand, one hundred sixty-one".