32461561 has 4 divisors (see below), whose sum is σ = 35412624. Its totient is φ = 29510500.

The previous prime is 32461511. The next prime is 32461601. The reversal of 32461561 is 16516423.

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 32461561 - 2¹¹ = 32459513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32461511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475515 + ... + 1475536.

It is an arithmetic number, because the mean of its divisors is an integer number (8853156).

Almost surely, 2^32461561 is an apocalyptic number.

It is an amenable number.

32461561 is a deficient number, since it is larger than the sum of its proper divisors (2951063).

32461561 is a wasteful number, since it uses less digits than its factorization.

32461561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951062.

The product of its digits is 4320, while the sum is 28.

The square root of 32461561 is about 5697.5048047369. The cubic root of 32461561 is about 318.9993514201. Note that the first 3 decimals are identical.

Adding to 32461561 its reverse (16516423), we get a palindrome (48977984).

The spelling of 32461561 in words is "thirty-two million, four hundred sixty-one thousand, five hundred sixty-one".