383261 has 2 divisors, whose sum is σ = 383262. Its totient is φ = 383260.

The previous prime is 383221. The next prime is 383267. The reversal of 383261 is 162383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 100 = 619^2 + 10^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191630 + 191631.

It is an arithmetic number, because the mean of its divisors is an integer number (191631).

2³⁸³²⁶¹ is an apocalyptic number.

It is an amenable number.

383261 is a deficient number, since it is larger than the sum of its proper divisors (1).

383261 is an equidigital number, since it uses as much as digits as its factorization.

383261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 383261 is about 619.0807701746. The cubic root of 383261 is about 72.6381669608.

The spelling of 383261 in words is "three hundred eighty-three thousand, two hundred sixty-one".