7408161 has 6 divisors (see below), whose sum is σ = 10700690. Its totient is φ = 4938768.

The previous prime is 7408151. The next prime is 7408171. The reversal of 7408161 is 1618047.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7408151) and next prime (7408171).

It can be written as a sum of positive squares in only one way, i.e., 3779136 + 3629025 = 1944^2 + 1905^2 .

It is not a de Polignac number, because 7408161 - 2⁵ = 7408129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7408151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411556 + ... + 411573.

Almost surely, 2^7408161 is an apocalyptic number.

It is an amenable number.

7408161 is a deficient number, since it is larger than the sum of its proper divisors (3292529).

7408161 is a wasteful number, since it uses less digits than its factorization.

7408161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823135 (or 823132 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 7408161 is about 2721.7937100376. The cubic root of 7408161 is about 194.9411262110.

It can be divided in two parts, 7408 and 161, that added together give a square (7569 = 87²).

The spelling of 7408161 in words is "seven million, four hundred eight thousand, one hundred sixty-one".