1050381 has 8 divisors (see below), whose sum is σ = 1556160. Its totient is φ = 700236.

The previous prime is 1050367. The next prime is 1050391. The reversal of 1050381 is 1830501.

It is a happy number.

It is not a de Polignac number, because 1050381 - 2⁵ = 1050349 is a prime.

It is a super-2 number, since 2×1050381² = 2206600490322, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19425 + ... + 19478.

It is an arithmetic number, because the mean of its divisors is an integer number (194520).

2^1050381 is an apocalyptic number.

It is an amenable number.

1050381 is a deficient number, since it is larger than the sum of its proper divisors (505779).

1050381 is an equidigital number, since it uses as much as digits as its factorization.

1050381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38912 (or 38906 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1050381 is about 1024.8809686983. The cubic root of 1050381 is about 101.6519277508.

Adding to 1050381 its product of nonzero digits (120), we get a palindrome (1050501).

Adding to 1050381 its reverse (1830501), we get a palindrome (2880882).

It can be divided in two parts, 1050 and 381, that added together give a triangular number (1431 = T₅₃).

The spelling of 1050381 in words is "one million, fifty thousand, three hundred eighty-one".