381207601 has 2 divisors, whose sum is σ = 381207602. Its totient is φ = 381207600.

The previous prime is 381207577. The next prime is 381207613. The reversal of 381207601 is 106702183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381186576 + 21025 = 19524^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 381207601 - 2¹³ = 381199409 is a prime.

It is a super-3 number, since 3×381207601³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381207601.

It is not a weakly prime, because it can be changed into another prime (381207661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190603800 + 190603801.

It is an arithmetic number, because the mean of its divisors is an integer number (190603801).

Almost surely, 2^381207601 is an apocalyptic number.

It is an amenable number.

381207601 is a deficient number, since it is larger than the sum of its proper divisors (1).

381207601 is an equidigital number, since it uses as much as digits as its factorization.

381207601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 381207601 is about 19524.5384324444. The cubic root of 381207601 is about 725.0820999376.

Adding to 381207601 its reverse (106702183), we get a palindrome (487909784).

The spelling of 381207601 in words is "three hundred eighty-one million, two hundred seven thousand, six hundred one".