1036381 has 4 divisors (see below), whose sum is σ = 1050652. Its totient is φ = 1022112.

The previous prime is 1036369. The next prime is 1036391. The reversal of 1036381 is 1836301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 872356 + 164025 = 934^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1036381 - 2⁵ = 1036349 is a prime.

It is a super-3 number, since 3×1036381³ = 3339485653631083023, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036331) 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, 7026 + ... + 7171.

It is an arithmetic number, because the mean of its divisors is an integer number (262663).

2^1036381 is an apocalyptic number.

It is an amenable number.

1036381 is a deficient number, since it is larger than the sum of its proper divisors (14271).

1036381 is an equidigital number, since it uses as much as digits as its factorization.

1036381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1036381 is about 1018.0279956858. The cubic root of 1036381 is about 101.1982838060.

It can be divided in two parts, 1036 and 381, that multiplied together give a triangular number (394716 = T₈₈₈).

The spelling of 1036381 in words is "one million, thirty-six thousand, three hundred eighty-one".