1170381 has 8 divisors (see below), whose sum is σ = 1642720. Its totient is φ = 739152.

The previous prime is 1170373. The next prime is 1170397. The reversal of 1170381 is 1830711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1170381 - 2³ = 1170373 is a prime.

It is a super-2 number, since 2×1170381² = 2739583370322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10210 + ... + 10323.

It is an arithmetic number, because the mean of its divisors is an integer number (205340).

2^1170381 is an apocalyptic number.

It is an amenable number.

1170381 is a deficient number, since it is larger than the sum of its proper divisors (472339).

1170381 is a wasteful number, since it uses less digits than its factorization.

1170381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20555.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1170381 is about 1081.8414856161. The cubic root of 1170381 is about 105.3842609665.

It can be divided in two parts, 1170 and 381, that added together give a palindrome (1551).

The spelling of 1170381 in words is "one million, one hundred seventy thousand, three hundred eighty-one".