2651331 has 4 divisors (see below), whose sum is σ = 3535112. Its totient is φ = 1767552.

The previous prime is 2651329. The next prime is 2651333. The reversal of 2651331 is 1331562.

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

It is an interprime number because it is at equal distance from previous prime (2651329) and next prime (2651333).

It is not a de Polignac number, because 2651331 - 2¹ = 2651329 is a prime.

It is a super-2 number, since 2×2651331² = 14059112143122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2651298 and 2651307.

It is not an unprimeable number, because it can be changed into a prime (2651333) 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, 441886 + ... + 441891.

It is an arithmetic number, because the mean of its divisors is an integer number (883778).

2^2651331 is an apocalyptic number.

2651331 is a deficient number, since it is larger than the sum of its proper divisors (883781).

2651331 is an equidigital number, since it uses as much as digits as its factorization.

2651331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883780.

The product of its digits is 540, while the sum is 21.

The square root of 2651331 is about 1628.2908216900. The cubic root of 2651331 is about 138.4059147182.

Adding to 2651331 its reverse (1331562), we get a palindrome (3982893).

It can be divided in two parts, 265 and 1331, that added together give a triangular number (1596 = T₅₆).

The spelling of 2651331 in words is "two million, six hundred fifty-one thousand, three hundred thirty-one".