1612361 has 2 divisors, whose sum is σ = 1612362. Its totient is φ = 1612360.

The previous prime is 1612333. The next prime is 1612363. The reversal of 1612361 is 1632161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 219961 = 1180^2 + 469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1612361 is a prime.

It is a Sophie Germain prime.

Together with 1612363, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1612363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806180 + 806181.

It is an arithmetic number, because the mean of its divisors is an integer number (806181).

2^1612361 is an apocalyptic number.

It is an amenable number.

1612361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612361 is an equidigital number, since it uses as much as digits as its factorization.

1612361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 1612361 is about 1269.7877775439. The cubic root of 1612361 is about 117.2611353863.

It can be divided in two parts, 16123 and 61, that multiplied together give a triangular number (983503 = T₁₄₀₂).

The spelling of 1612361 in words is "one million, six hundred twelve thousand, three hundred sixty-one".