2267531 has 4 divisors (see below), whose sum is σ = 2591472. Its totient is φ = 1943592.

The previous prime is 2267521. The next prime is 2267533. The reversal of 2267531 is 1357622.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2267531 - 2¹⁰ = 2266507 is a prime.

It is a super-2 number, since 2×2267531² = 10283393671922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2267531.

It is not an unprimeable number, because it can be changed into a prime (2267533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161960 + ... + 161973.

It is an arithmetic number, because the mean of its divisors is an integer number (647868).

2^2267531 is an apocalyptic number.

2267531 is a deficient number, since it is larger than the sum of its proper divisors (323941).

2267531 is an equidigital number, since it uses as much as digits as its factorization.

2267531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323940.

The product of its digits is 2520, while the sum is 26.

The square root of 2267531 is about 1505.8323279834. The cubic root of 2267531 is about 131.3765171593.

Subtracting from 2267531 its reverse (1357622), we obtain a palindrome (909909).

The spelling of 2267531 in words is "two million, two hundred sixty-seven thousand, five hundred thirty-one".