381461 has 2 divisors, whose sum is σ = 381462. Its totient is φ = 381460.

The previous prime is 381443. The next prime is 381467. The reversal of 381461 is 164183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 78961 = 550^2 + 281^2 .

It is an emirp because it is prime and its reverse (164183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190730 + 190731.

It is an arithmetic number, because the mean of its divisors is an integer number (190731).

2³⁸¹⁴⁶¹ is an apocalyptic number.

It is an amenable number.

381461 is a deficient number, since it is larger than the sum of its proper divisors (1).

381461 is an equidigital number, since it uses as much as digits as its factorization.

381461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 381461 is about 617.6252909329. The cubic root of 381461 is about 72.5242724911.

The spelling of 381461 in words is "three hundred eighty-one thousand, four hundred sixty-one".