381077497 has 2 divisors, whose sum is σ = 381077498. Its totient is φ = 381077496.

The previous prime is 381077479. The next prime is 381077503. The reversal of 381077497 is 794770183.

Together with previous prime (381077479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366492736 + 14584761 = 19144^2 + 3819^2 .

It is a cyclic number.

It is not a de Polignac number, because 381077497 - 2⁷ = 381077369 is a prime.

It is not a weakly prime, because it can be changed into another prime (381071497) 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, 190538748 + 190538749.

It is an arithmetic number, because the mean of its divisors is an integer number (190538749).

Almost surely, 2^381077497 is an apocalyptic number.

It is an amenable number.

381077497 is a deficient number, since it is larger than the sum of its proper divisors (1).

381077497 is an equidigital number, since it uses as much as digits as its factorization.

381077497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 381077497 is about 19521.2063407977. The cubic root of 381077497 is about 724.9996017437. Note that the first 3 decimals are identical.

The spelling of 381077497 in words is "three hundred eighty-one million, seventy-seven thousand, four hundred ninety-seven".