4196561 has 4 divisors (see below), whose sum is σ = 4341300. Its totient is φ = 4051824.

The previous prime is 4196527. The next prime is 4196567. The reversal of 4196561 is 1656914.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1113025 + 3083536 = 1055^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 4196561 - 2⁶ = 4196497 is a prime.

It is a super-2 number, since 2×4196561² = 35222248453442, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4196567) 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, 72326 + ... + 72383.

It is an arithmetic number, because the mean of its divisors is an integer number (1085325).

Almost surely, 2^4196561 is an apocalyptic number.

It is an amenable number.

4196561 is a deficient number, since it is larger than the sum of its proper divisors (144739).

4196561 is a wasteful number, since it uses less digits than its factorization.

4196561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144738.

The product of its digits is 6480, while the sum is 32.

The square root of 4196561 is about 2048.5509512824. The cubic root of 4196561 is about 161.2988162198.

The spelling of 4196561 in words is "four million, one hundred ninety-six thousand, five hundred sixty-one".