22645141 has 4 divisors (see below), whose sum is σ = 22810572. Its totient is φ = 22479712.

The previous prime is 22645127. The next prime is 22645163. The reversal of 22645141 is 14154622.

It is a happy number.

22645141 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14154622 = 2 ⋅7077311.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 6275025 = 4046^2 + 2505^2 .

It is a cyclic number.

It is not a de Polignac number, because 22645141 - 2¹³ = 22636949 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 (22645121) 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, 82510 + ... + 82783.

It is an arithmetic number, because the mean of its divisors is an integer number (5702643).

Almost surely, 2^22645141 is an apocalyptic number.

It is an amenable number.

22645141 is a deficient number, since it is larger than the sum of its proper divisors (165431).

22645141 is a wasteful number, since it uses less digits than its factorization.

22645141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165430.

The product of its digits is 1920, while the sum is 25.

The square root of 22645141 is about 4758.6911015530. The cubic root of 22645141 is about 282.9165432093.

Adding to 22645141 its reverse (14154622), we get a palindrome (36799763).

The spelling of 22645141 in words is "twenty-two million, six hundred forty-five thousand, one hundred forty-one".