7162381 has 4 divisors (see below), whose sum is σ = 7328992. Its totient is φ = 6995772.

The previous prime is 7162339. The next prime is 7162403. The reversal of 7162381 is 1832617.

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 a cyclic number.

It is not a de Polignac number, because 7162381 - 2¹⁷ = 7031309 is a prime.

It is a super-2 number, since 2×7162381² = 102599403178322, which contains 22 as substring.

It is a Duffinian number.

7162381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7162781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83241 + ... + 83326.

It is an arithmetic number, because the mean of its divisors is an integer number (1832248).

Almost surely, 2^7162381 is an apocalyptic number.

It is an amenable number.

7162381 is a deficient number, since it is larger than the sum of its proper divisors (166611).

7162381 is a wasteful number, since it uses less digits than its factorization.

7162381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166610.

The product of its digits is 2016, while the sum is 28.

The square root of 7162381 is about 2676.2625058092. The cubic root of 7162381 is about 192.7609863066.

Adding to 7162381 its reverse (1832617), we get a palindrome (8994998).

The spelling of 7162381 in words is "seven million, one hundred sixty-two thousand, three hundred eighty-one".