381137413 has 2 divisors, whose sum is σ = 381137414. Its totient is φ = 381137412.

The previous prime is 381137387. The next prime is 381137417. The reversal of 381137413 is 314731183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200987329 + 180150084 = 14177^2 + 13422^2 .

It is a cyclic number.

It is not a de Polignac number, because 381137413 - 2²⁵ = 347582981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381137417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190568706 + 190568707.

It is an arithmetic number, because the mean of its divisors is an integer number (190568707).

Almost surely, 2^381137413 is an apocalyptic number.

It is an amenable number.

381137413 is a deficient number, since it is larger than the sum of its proper divisors (1).

381137413 is an equidigital number, since it uses as much as digits as its factorization.

381137413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 381137413 is about 19522.7409192459. The cubic root of 381137413 is about 725.0375964649.

Adding to 381137413 its reverse (314731183), we get a palindrome (695868596).

The spelling of 381137413 in words is "three hundred eighty-one million, one hundred thirty-seven thousand, four hundred thirteen".