2621137 has 2 divisors, whose sum is σ = 2621138. Its totient is φ = 2621136.

The previous prime is 2621131. The next prime is 2621147. The reversal of 2621137 is 7311262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1745041 + 876096 = 1321^2 + 936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2621137 is a prime.

It is equal to p₁₉₁₂₉₀ and since 2621137 and 191290 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 (2621131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310568 + 1310569.

It is an arithmetic number, because the mean of its divisors is an integer number (1310569).

2^2621137 is an apocalyptic number.

It is an amenable number.

2621137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621137 is an equidigital number, since it uses as much as digits as its factorization.

2621137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 2621137 is about 1618.9925880003. The cubic root of 2621137 is about 137.8785075085.

Adding to 2621137 its reverse (7311262), we get a palindrome (9932399).

The spelling of 2621137 in words is "two million, six hundred twenty-one thousand, one hundred thirty-seven".