22031045 has 8 divisors (see below), whose sum is σ = 26671896. Its totient is φ = 17468416.

The previous prime is 22031027. The next prime is 22031057. The reversal of 22031045 is 54013022.

It can be written as a sum of positive squares in 4 ways, for example, as 343396 + 21687649 = 586^2 + 4657^2 .

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 22031045 - 2¹⁴ = 22014661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18932 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (3333987).

Almost surely, 2^22031045 is an apocalyptic number.

It is an amenable number.

22031045 is a deficient number, since it is larger than the sum of its proper divisors (4640851).

22031045 is a wasteful number, since it uses less digits than its factorization.

22031045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22031045 is about 4693.7240012596. The cubic root of 22031045 is about 280.3356731036.

Adding to 22031045 its reverse (54013022), we get a palindrome (76044067).

The spelling of 22031045 in words is "twenty-two million, thirty-one thousand, forty-five".