2135597 has 2 divisors, whose sum is σ = 2135598. Its totient is φ = 2135596.

The previous prime is 2135563. The next prime is 2135611. The reversal of 2135597 is 7955312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1485961 + 649636 = 1219^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135597 - 2⁶ = 2135533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067798 + 1067799.

It is an arithmetic number, because the mean of its divisors is an integer number (1067799).

2^2135597 is an apocalyptic number.

It is an amenable number.

2135597 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135597 is an equidigital number, since it uses as much as digits as its factorization.

2135597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 2135597 is about 1461.3681945355. The cubic root of 2135597 is about 128.7774340634. Note that the first 3 decimals are identical.

The spelling of 2135597 in words is "two million, one hundred thirty-five thousand, five hundred ninety-seven".