2235161 has 2 divisors, whose sum is σ = 2235162. Its totient is φ = 2235160.

The previous prime is 2235139. The next prime is 2235199. The reversal of 2235161 is 1615322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 59536 = 1475^2 + 244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2235161 is a prime.

It is equal to p₁₆₅₀₇₁ and since 2235161 and 165071 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 (2235661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117580 + 1117581.

It is an arithmetic number, because the mean of its divisors is an integer number (1117581).

2^2235161 is an apocalyptic number.

It is an amenable number.

2235161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235161 is an equidigital number, since it uses as much as digits as its factorization.

2235161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 2235161 is about 1495.0454842579. The cubic root of 2235161 is about 130.7483660882.

The spelling of 2235161 in words is "two million, two hundred thirty-five thousand, one hundred sixty-one".