2731522 has 4 divisors (see below), whose sum is σ = 4097286. Its totient is φ = 1365760.

The previous prime is 2731517. The next prime is 2731541. The reversal of 2731522 is 2251372.

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

It can be written as a sum of positive squares in only one way, i.e., 2719201 + 12321 = 1649^2 + 111^2 .

It is a super-2 number, since 2×2731522² = 14922424872968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2731493 and 2731502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682879 + ... + 682882.

2^2731522 is an apocalyptic number.

2731522 is a deficient number, since it is larger than the sum of its proper divisors (1365764).

2731522 is a wasteful number, since it uses less digits than its factorization.

2731522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365763.

The product of its digits is 840, while the sum is 22.

The square root of 2731522 is about 1652.7316781619. The cubic root of 2731522 is about 139.7874666330.

Adding to 2731522 its reverse (2251372), we get a palindrome (4982894).

The spelling of 2731522 in words is "two million, seven hundred thirty-one thousand, five hundred twenty-two".