22146545 has 8 divisors (see below), whose sum is σ = 26834496. Its totient is φ = 17544816.

The previous prime is 22146499. The next prime is 22146547. The reversal of 22146545 is 54564122.

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 22146545 - 2¹⁰ = 22145521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22146547) 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, 20987 + ... + 22016.

It is an arithmetic number, because the mean of its divisors is an integer number (3354312).

Almost surely, 2^22146545 is an apocalyptic number.

It is an amenable number.

22146545 is a deficient number, since it is larger than the sum of its proper divisors (4687951).

22146545 is a wasteful number, since it uses less digits than its factorization.

22146545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43111.

The product of its digits is 9600, while the sum is 29.

The square root of 22146545 is about 4706.0115809462. The cubic root of 22146545 is about 280.8247155960.

The spelling of 22146545 in words is "twenty-two million, one hundred forty-six thousand, five hundred forty-five".