7562161 has 4 divisors (see below), whose sum is σ = 8007012. Its totient is φ = 7117312.

The previous prime is 7562141. The next prime is 7562167. The reversal of 7562161 is 1612657.

7562161 = 1944² + 1945².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1612657 = 61 ⋅26437.

It can be written as a sum of positive squares in 2 ways, for example, as 3783025 + 3779136 = 1945^2 + 1944^2 .

It is a cyclic number.

It is not a de Polignac number, because 7562161 - 2⁵ = 7562129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7562167) 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 3 ways as a sum of consecutive naturals, for example, 222400 + ... + 222433.

It is an arithmetic number, because the mean of its divisors is an integer number (2001753).

Almost surely, 2^7562161 is an apocalyptic number.

7562161 is the 1945-th centered square number.

It is an amenable number.

7562161 is a deficient number, since it is larger than the sum of its proper divisors (444851).

7562161 is a wasteful number, since it uses less digits than its factorization.

7562161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444850.

The product of its digits is 2520, while the sum is 28.

The square root of 7562161 is about 2749.9383629456. The cubic root of 7562161 is about 196.2826772909.

The spelling of 7562161 in words is "seven million, five hundred sixty-two thousand, one hundred sixty-one".