22811601 has 4 divisors (see below), whose sum is σ = 30415472. Its totient is φ = 15207732.

The previous prime is 22811597. The next prime is 22811623. The reversal of 22811601 is 10611822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22811601 - 2² = 22811597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22811641) 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, 3801931 + ... + 3801936.

It is an arithmetic number, because the mean of its divisors is an integer number (7603868).

Almost surely, 2^22811601 is an apocalyptic number.

It is an amenable number.

22811601 is a deficient number, since it is larger than the sum of its proper divisors (7603871).

22811601 is an equidigital number, since it uses as much as digits as its factorization.

22811601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603870.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 22811601 is about 4776.1491810872. The cubic root of 22811601 is about 283.6080729153.

The spelling of 22811601 in words is "twenty-two million, eight hundred eleven thousand, six hundred one".