1461161 has 4 divisors (see below), whose sum is σ = 1573572. Its totient is φ = 1348752.

The previous prime is 1461151. The next prime is 1461169. The reversal of 1461161 is 1611641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1611641 = 103 ⋅15647.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 570025 = 944^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461161 - 2¹⁴ = 1444777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1461169) 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, 56186 + ... + 56211.

It is an arithmetic number, because the mean of its divisors is an integer number (393393).

2^1461161 is an apocalyptic number.

It is an amenable number.

1461161 is a deficient number, since it is larger than the sum of its proper divisors (112411).

1461161 is a wasteful number, since it uses less digits than its factorization.

1461161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112410.

The product of its digits is 144, while the sum is 20.

The square root of 1461161 is about 1208.7849271066. The cubic root of 1461161 is about 113.4747820574.

The spelling of 1461161 in words is "one million, four hundred sixty-one thousand, one hundred sixty-one".