381763149 has 4 divisors (see below), whose sum is σ = 509017536. Its totient is φ = 254508764.

The previous prime is 381763141. The next prime is 381763157. The reversal of 381763149 is 941367183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (381763141) and next prime (381763157).

It is a cyclic number.

It is not a de Polignac number, because 381763149 - 2³ = 381763141 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 381763149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381763141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63627189 + ... + 63627194.

It is an arithmetic number, because the mean of its divisors is an integer number (127254384).

Almost surely, 2^381763149 is an apocalyptic number.

It is an amenable number.

381763149 is a deficient number, since it is larger than the sum of its proper divisors (127254387).

381763149 is a wasteful number, since it uses less digits than its factorization.

381763149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127254386.

The product of its digits is 108864, while the sum is 42.

The square root of 381763149 is about 19538.7601704919. The cubic root of 381763149 is about 725.4341586646.

It can be divided in two parts, 3817 and 63149, that added together give a palindrome (66966).

The spelling of 381763149 in words is "three hundred eighty-one million, seven hundred sixty-three thousand, one hundred forty-nine".