7418161 has 4 divisors (see below), whose sum is σ = 7424500. Its totient is φ = 7411824.

The previous prime is 7418153. The next prime is 7418183. The reversal of 7418161 is 1618147.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1366561 + 6051600 = 1169^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 7418161 - 2³ = 7418153 is a prime.

It is a super-2 number, since 2×7418161² = 110058225243842, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7418141) 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, 846 + ... + 3943.

It is an arithmetic number, because the mean of its divisors is an integer number (1856125).

Almost surely, 2^7418161 is an apocalyptic number.

It is an amenable number.

7418161 is a deficient number, since it is larger than the sum of its proper divisors (6339).

7418161 is a wasteful number, since it uses less digits than its factorization.

7418161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338.

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

The square root of 7418161 is about 2723.6301143878. The cubic root of 7418161 is about 195.0288013562.

The spelling of 7418161 in words is "seven million, four hundred eighteen thousand, one hundred sixty-one".