2253731 has 4 divisors (see below), whose sum is σ = 2326464. Its totient is φ = 2181000.

The previous prime is 2253721. The next prime is 2253739. The reversal of 2253731 is 1373522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1373522 = 2 ⋅686761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2253731 is a prime.

It is a super-2 number, since 2×2253731² = 10158606840722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2253697 and 2253706.

It is not an unprimeable number, because it can be changed into a prime (2253739) 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, 36320 + ... + 36381.

It is an arithmetic number, because the mean of its divisors is an integer number (581616).

2^2253731 is an apocalyptic number.

2253731 is a deficient number, since it is larger than the sum of its proper divisors (72733).

2253731 is an equidigital number, since it uses as much as digits as its factorization.

2253731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72732.

The product of its digits is 1260, while the sum is 23.

The square root of 2253731 is about 1501.2431515248. The cubic root of 2253731 is about 131.1094592395.

The spelling of 2253731 in words is "two million, two hundred fifty-three thousand, seven hundred thirty-one".