381461237 has 2 divisors, whose sum is σ = 381461238. Its totient is φ = 381461236.

The previous prime is 381461177. The next prime is 381461251. The reversal of 381461237 is 732164183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219306481 + 162154756 = 14809^2 + 12734^2 .

It is a cyclic number.

It is not a de Polignac number, because 381461237 - 2¹⁶ = 381395701 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 381461197 and 381461206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381461257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190730618 + 190730619.

It is an arithmetic number, because the mean of its divisors is an integer number (190730619).

Almost surely, 2^381461237 is an apocalyptic number.

It is an amenable number.

381461237 is a deficient number, since it is larger than the sum of its proper divisors (1).

381461237 is an equidigital number, since it uses as much as digits as its factorization.

381461237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 381461237 is about 19531.0326659908. The cubic root of 381461237 is about 725.2428751081.

The spelling of 381461237 in words is "three hundred eighty-one million, four hundred sixty-one thousand, two hundred thirty-seven".