381152437 has 2 divisors, whose sum is σ = 381152438. Its totient is φ = 381152436.

The previous prime is 381152411. The next prime is 381152459. The reversal of 381152437 is 734251183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203889841 + 177262596 = 14279^2 + 13314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381152437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381152467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190576218 + 190576219.

It is an arithmetic number, because the mean of its divisors is an integer number (190576219).

Almost surely, 2^381152437 is an apocalyptic number.

It is an amenable number.

381152437 is a deficient number, since it is larger than the sum of its proper divisors (1).

381152437 is an equidigital number, since it uses as much as digits as its factorization.

381152437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 381152437 is about 19523.1256974901. The cubic root of 381152437 is about 725.0471230568.

The spelling of 381152437 in words is "three hundred eighty-one million, one hundred fifty-two thousand, four hundred thirty-seven".