2223537 has 8 divisors (see below), whose sum is σ = 3060480. Its totient is φ = 1434480.

The previous prime is 2223521. The next prime is 2223541. The reversal of 2223537 is 7353222.

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

It is not a de Polignac number, because 2223537 - 2⁴ = 2223521 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2223587) 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, 11862 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (382560).

2^2223537 is an apocalyptic number.

It is an amenable number.

2223537 is a deficient number, since it is larger than the sum of its proper divisors (836943).

2223537 is a wasteful number, since it uses less digits than its factorization.

2223537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23943.

The product of its digits is 2520, while the sum is 24.

The square root of 2223537 is about 1491.1529096642. The cubic root of 2223537 is about 130.5213188700.

Adding to 2223537 its reverse (7353222), we get a palindrome (9576759).

The spelling of 2223537 in words is "two million, two hundred twenty-three thousand, five hundred thirty-seven".