22237145 has 8 divisors (see below), whose sum is σ = 30496704. Its totient is φ = 15248304.

The previous prime is 22237133. The next prime is 22237151. The reversal of 22237145 is 54173222.

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 22237145 - 2¹⁴ = 22220761 is a prime.

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, 317639 + ... + 317708.

It is an arithmetic number, because the mean of its divisors is an integer number (3812088).

Almost surely, 2^22237145 is an apocalyptic number.

It is an amenable number.

22237145 is a deficient number, since it is larger than the sum of its proper divisors (8259559).

22237145 is an equidigital number, since it uses as much as digits as its factorization.

22237145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635359.

The product of its digits is 3360, while the sum is 26.

The square root of 22237145 is about 4715.6277418812. The cubic root of 22237145 is about 281.2071394769.

The spelling of 22237145 in words is "twenty-two million, two hundred thirty-seven thousand, one hundred forty-five".