22345513 has 8 divisors (see below), whose sum is σ = 23189760. Its totient is φ = 21509040.

The previous prime is 22345493. The next prime is 22345517. The reversal of 22345513 is 31554322.

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

It is a de Polignac number, because none of the positive numbers 2^k-22345513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22345517) 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, 4278 + ... + 7936.

It is an arithmetic number, because the mean of its divisors is an integer number (2898720).

Almost surely, 2^22345513 is an apocalyptic number.

It is an amenable number.

22345513 is a deficient number, since it is larger than the sum of its proper divisors (844247).

22345513 is a wasteful number, since it uses less digits than its factorization.

22345513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887.

The product of its digits is 3600, while the sum is 25.

The square root of 22345513 is about 4727.1040817820. The cubic root of 22345513 is about 281.6632005144.

Adding to 22345513 its reverse (31554322), we get a palindrome (53899835).

The spelling of 22345513 in words is "twenty-two million, three hundred forty-five thousand, five hundred thirteen".