1081378 has 4 divisors (see below), whose sum is σ = 1622070. Its totient is φ = 540688.

The previous prime is 1081369. The next prime is 1081403. The reversal of 1081378 is 8731801.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1034289 + 47089 = 1017^2 + 217^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270343 + ... + 270346.

2^1081378 is an apocalyptic number.

1081378 is a deficient number, since it is larger than the sum of its proper divisors (540692).

1081378 is an equidigital number, since it uses as much as digits as its factorization.

1081378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540691.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1081378 is about 1039.8932637535. The cubic root of 1081378 is about 102.6421743078.

The spelling of 1081378 in words is "one million, eighty-one thousand, three hundred seventy-eight".