2612521 has 2 divisors, whose sum is σ = 2612522. Its totient is φ = 2612520.

The previous prime is 2612507. The next prime is 2612537. The reversal of 2612521 is 1252162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2143296 + 469225 = 1464^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2612521 - 2¹¹ = 2610473 is a prime.

It is equal to p₁₉₀₇₁₁ and since 2612521 and 190711 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2612021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1306260 + 1306261.

It is an arithmetic number, because the mean of its divisors is an integer number (1306261).

2^2612521 is an apocalyptic number.

It is an amenable number.

2612521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2612521 is an equidigital number, since it uses as much as digits as its factorization.

2612521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 2612521 is about 1616.3294837378. The cubic root of 2612521 is about 137.7272671294.

Adding to 2612521 its reverse (1252162), we get a palindrome (3864683).

The spelling of 2612521 in words is "two million, six hundred twelve thousand, five hundred twenty-one".