381501037 has 2 divisors, whose sum is σ = 381501038. Its totient is φ = 381501036.

The previous prime is 381501017. The next prime is 381501067. The reversal of 381501037 is 730105183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203518756 + 177982281 = 14266^2 + 13341^2 .

It is a cyclic number.

It is not a de Polignac number, because 381501037 - 2⁷ = 381500909 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 381500996 and 381501014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381501007) 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, 190750518 + 190750519.

It is an arithmetic number, because the mean of its divisors is an integer number (190750519).

Almost surely, 2^381501037 is an apocalyptic number.

It is an amenable number.

381501037 is a deficient number, since it is larger than the sum of its proper divisors (1).

381501037 is an equidigital number, since it uses as much as digits as its factorization.

381501037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 381501037 is about 19532.0515307532. The cubic root of 381501037 is about 725.2680971227.

The spelling of 381501037 in words is "three hundred eighty-one million, five hundred one thousand, thirty-seven".