381300637 has 2 divisors, whose sum is σ = 381300638. Its totient is φ = 381300636.

The previous prime is 381300631. The next prime is 381300727. The reversal of 381300637 is 736003183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205234276 + 176066361 = 14326^2 + 13269^2 .

It is an emirp because it is prime and its reverse (736003183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381300637 - 2²⁷ = 247082909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381300599 and 381300608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381300631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190650318 + 190650319.

It is an arithmetic number, because the mean of its divisors is an integer number (190650319).

Almost surely, 2^381300637 is an apocalyptic number.

It is an amenable number.

381300637 is a deficient number, since it is larger than the sum of its proper divisors (1).

381300637 is an equidigital number, since it uses as much as digits as its factorization.

381300637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 381300637 is about 19526.9208274116. The cubic root of 381300637 is about 725.1410820171.

The spelling of 381300637 in words is "three hundred eighty-one million, three hundred thousand, six hundred thirty-seven".