383690149 has 2 divisors, whose sum is σ = 383690150. Its totient is φ = 383690148.

The previous prime is 383690129. The next prime is 383690171. The reversal of 383690149 is 941096383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363169249 + 20520900 = 19057^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 383690149 - 2¹³ = 383681957 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383690129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191845074 + 191845075.

It is an arithmetic number, because the mean of its divisors is an integer number (191845075).

Almost surely, 2^383690149 is an apocalyptic number.

It is an amenable number.

383690149 is a deficient number, since it is larger than the sum of its proper divisors (1).

383690149 is an equidigital number, since it uses as much as digits as its factorization.

383690149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 383690149 is about 19588.0103379593. The cubic root of 383690149 is about 726.6526856955.

The spelling of 383690149 in words is "three hundred eighty-three million, six hundred ninety thousand, one hundred forty-nine".